Disclaimer: I do not own Star Wars, it all belongs to Lucas Films and Disney, ect.
When Kylo-Ren regained consciousness he knew exactly where he was, the main resistance base and he was in some kind of detention cell.
The first thing he noticed was that his hands were trapped behind his back in special force proof handcuffs. So he couldn't use the force to knock his mother into a wall as she had done to him. Great, not.
However, he could sense his mother as well many others through the force so he knew the cell wasn't force proof.
He tried to alert Snoke through the force but Snoke would not respond.
"Don't bother Ben, you can sense him but he can't sense you. This cell was specially designed so the person in the cell can use force sense but anyone outside the cell can't connect the force to the one inside the cell. Snoke can't help you, he never could. Remember who you are, you call yourself Kylo-Ren but that is not who you are." he heard his mother's voice.
"Ben Solo is dead and gone! Kylo-Ren is who I am now Leia, I'm not your son anymore! You think you know me, you don't know anything!" Ren hissed and Leia pushed off the wall she was leaning against before she walked right up to him and clasped his face in both hands.
"I know everything about you. You're Ben Solo and my son and I remember your first word was Daddy, you took your first steps when you were a little less than a year old. I remember how absolutely terrified I was when your father took you flying on the Falcon for the first time and I remember how happy you were when we told you that you were going to have a little sister. What I don't know is how that happy care free little boy of mine could become so angry and resentful towards everyone in the entire galaxy? Talk to me Ben, please I know you're still in there I can feel it so please talk to me. What have we done to deserve this? Did your father and I not love you enough? Did something happen with your sister that made you want us and her to suffer? What Ben?! Tell me and we'll fix it or try to do better but don't shut me out again please, please Ben. I want my son back and I know he's still in there somewhere, angry and hurting but he's there and I want him back." Leia pleaded with him and she was making progress as she could feel his many walls of defense coming down.
"You really want to know what you did to make this monster, what Han did?" Ren asked and she nodded.
"Fine but don't blame me if the guilt and regret breaks your hearts! Yes everything you said is true, first word and all that. Yes, I was insanely happy to be a big brother that is until I realized what it meant. She was your Rey of bloody sunshine while I was just a dark cloud of mistakes and disappointment to you. 'Ben why can't you be more like your sister Jaina!' Yes because she could do no wrong but I was the troublesome little brat you couldn't get away from fast enough. Jaina got to go with you on trips and with you to work but when I asked to go I got told that I had to stay and train with Uncle Luke. Train, train, train that's all I was ever allowed to do and look at the result! Not even all the jedi training I did could keep me from going dark and I wonder why that is Mom?!" Ren fumed and as Leia thought back on those years only to realize that he was absolutely right.
Leia didn't know what to say. What could she say? Nothing could fix what they'd put their son through, nothing could make this right but if they showed him enough love and attention now perhaps they could work on getting him to forgive them.
Leia wrapped her arms around her son and put all the love into the embrace that she could,"I won't make any excuses because there isn't any but you must know deep down that we never meant to make you feel so alone. We love you Ben and maybe we haven't always been the best at showing it but you are our son and we miss you. Come home, I know nothing can make it right but if you let us we can try to make up for it. Some how." she told him and Ren struggled to free himself from her embrace but with his hands restrained as they were it was no use.
"Get off! The only thing that can make up for this is to kill you all and you better believe I will. You have no idea what it's like to grow up with no one, You had family who loved you. Luke had you, Han had Chewy and Jaina had every one of you wrapped around her finger while I was left feeling alone in my own family and you have no clue what that feels like so don't act like you care now because you never did before! Ben is never coming back because you destroyed him and now I am all that's left so get used to it!" The walls came down and no matter how hard Ren tried to put them back, to trap Ben Solo in the deepest part of himself he could not do it and as Ren began to over flow with all the anger and sadness from years of emotional pain Leia knew she had won. Her Ben was back and here to stay if she could help it.
Kylo-Ren was gone and would have called him weak for showing so much emotion to someone who'd let him down all his life but Ben couldn't care less about the dark side and all it's power because he remembered all the horrible things he'd done as Ren and he was ashamed of himself.
"Was I so horrible? What, was it really so hard to love me or was it because I was eight before I could use the force when Jaina could use it when she was only two? I want to know what I did to make you and dad hate me so much." Ben asked, his voice cracking as he broke into hot angry sobs and Leia couldn't stand seeing him like this.
Ben was so broken, so angry and so hurt and it was all they're fault. For the first time in her entire life Leia did the one thing she'd never done, she ran.
She ran from the guilt and the shame of what she and Han had unintentionally done to their son. Leia was so upset that she ran right passed Rey and Han and didn't even notice, she just kept running until she got to the Falcon.
She typed the code into the access panel and once the ramp was down she ran onto the Falcon and into the bunk she shared with Han before she climbed on their bed and curled into a ball as she cried her eyes out with tears of guilt and shame.
Han followed after her, he said nothing for now and simply held her close trying in vain to comfort her.
Leia cried hysterically for another hour and a half before she'd cried herself to sleep and Han hadn't seen her this emotional in years which made him wonder what could have made her so upset in the first place.
Dumb question, Han thought to himself as he realized the answer was obvious. Ben.
Han decided enough was enough, it was time to go pay his son a visit.
Han unlocked the door, went inside and locked the door behind him before turning to face his son who appeared to be asleep but Han knew better because it was a trick Ben had used many times growing up.
"You and I both know you're not really asleep so you might as well give it up Ben." Han told his son.
"Yeah well, I don't really feel like talking anymore right now. I already feel bad enough about making Mom upset so don't give me that 'your mother only wants to help you' speech. I get it okay, I'm the bad seed and I always will be especially to you where as Jain- I mean Rey has always been the golden Solo, the princess Leia jr. and most of all my sister is the one you and Mom have always been proud of where as I have always just been a disappointment." Ben muttered and Han looked slightly confused.
"Mom didn't tell you?" Ben asked and Han sighed sadly,"No, she was too hysterical to do anything but cry but what I want to know is what made her so upset? What was said between the two of you?" Han asked.
Ben sighed,"Better sit down, this could take a while to explain but once I finish explaining... choose your response carefully because depending on how you respond will determine if I will forgive you or not. Listen very carefully and please do not interrupt me and remember to think very long and hard before you respond. Choose your response wisely." he explained to his father and only after Han nodded for him to continue did he take a moment to collect his thoughts.
"Imagine that you're me in my childhood from the time I was born right up until you sent me to Uncle Luke's school for young jedi padawans. You're born to parents who love you and care about you, for a few years you're all they talk about and you're their everything but then you realize you're going to be a brother which at first makes you happy because you think it'll be someone you protect and teach things to but as time passes your parents send you to train with your Uncle constantly which dosen't seem so bad until it begins to feel like all you ever do is train to become a jedi while your baby sister gets to go on trips or tags along to work with one or both of your parents while all you do is train and train and train some more until eventually you wonder what you could have done wrong or if there was something else that, what would seem to a young boy at least, made your parents hate you so much and yet they were always bragging and saying how proud they were of their precious perfect baby girl. Now I want you to think about that and imagine being me through all of that and imagine how it would make you feel if you were in my place through all of it. Now yes, I understand that nobody is perfect and that we all make mistakes no matter how big or small. Yes I understand you and Mom each had jobs and that you couldn't give me all the attention all the time or vice versa. I know that you may not have done it intentionally but you must see by now that I felt like I was on the outside of my own family looking in." Ben explained calmly and rationally.
Before Han could say anything in response Ben added,"Don't answer me now, go and take some time to think about our little chat. And remember, choose your response wisely for it will decide whether or not I forgive you. I've already forgiven Mom but only you can decide, what is more important my forgiveness which would make our family whole once more or refusing to see that I am not the only Solo who has made grave mistakes? Hm, you decide which is more important to you and then get back to me with your choice." Ben warned his father gently and Han nodded.