Imagine:
The boys knowing that you self-harm
It had been a long day hunting once you got back to the bunker, you rushed through the door and straight to your room. The boys had followed you in. dean dropped the weapons bag on the table as he saw you rush out.
Estelle
You rushed towards your room. Dean stopped you in the doorway of the kitchen. He had called out to you. "Estelle?" You stopped cold. Dean walked p to you, he placed his hands on your shoulders, turning you around towards him. You stood there but you didn't – couldn't look at him. "Estelle, you sure you're okay?" He asked worriedly. You grabbed your wrist a little tighter as you finally looked at him, showing him a fake smile like you had done in the past "Yeah, D. I'm okay. Just a little tired that's all." You said softly trying to reassure him. He nodded, lowering his hands "Sammy and I are here if you ever need us, okay kid?" He told you, reminding you. You gave a small nod. He noticed you holding your wrist as you walked away, trying to hold in the tears. You closed the door and locked it once you got to your room your back sliding down the wooden door as you began to cry, unable to hold back the tears any longer.
Dean
Dean walked out to where Sam is sitting at the table in the kitchen. Sam threw him a beer as he entered. He noticed the worry on his brother's face when he sat down in front of him. "Something wrong?" Sam asked "I don't know. It's just…" He didn't finish "What?" Sam replied, watching Dean as he opened his beer can "Estelle-" He hesitated "What about her?" Sam asked, "There's something she's not telling us." Dean answered his brother before drinking from his beer can.
Later that night
Estelle
It was 7, maybe 8. You had fallen asleep after crying all afternoon. You had told the boys earlier that 'you weren't hungry' but that was just a lie, you didn't want to be around anyone.
Sam
Sam decided he would try to talk to you about how you've been acting while Dean decided to take a drive in the impala to clear his head. He walked to your room and knocked on the door "Estelle?" he whispered as he opened the door slowly "Estelle?" he softly repeated before seeing you asleep. He gives a small smile, walking over and sitting on your bed beside you. He watched over you as you stirred while he brushed his hand through your hair. As Sam began to walk out of your room, he noticed the small blood-stained rag from your bag beside the door which made him worry even more as he continued to watch over you from your door for a few minutes. Sam walked out when he heard the bunker door open, still holding the rag in his hands.
Dean
He walked down the stairs meeting Sammy at the bottom "Hey, how's the kid?" He asked when he noticed the piece of cloth in Sam's hand "Is that- " Dean began concerned before Sam interrupted "Yeah, it's hers." Dean rushed to your room to watch over you and make sure you didn't hurt yourself too badly.
The next day
Estelle
You got up, putting on a long sleeve shirt to hide your scars from Sam and Dean before you walked out of your room. You walked into the kitchen to see Sam sitting at the table with Dean standing across from him when you notice the rag you had used on your wrist last night to control the bleeding was on the table in front of Sam. You became fearfully of what they would do. Dean looked mad as he walked over to you, you looked away from them both. It surprised you when Dean hugged you instead of yelling at you. Dean pulled back, trying to give you a sweet smile to hide his worry for a moment. "Estelle," Sam spoke softly "We just wanna help." He stood up and hugged you "Yeah. No more hurting yourself." Dean was worried and mad but not mad at you. He was mad at himself that he was letting you hurt yourself. He couldn't help it "Estelle. you are our family – " Sam continued what Dean began to say "Yeah and we are never leaving you. No matter what happens." Sam told you. Both Sam and Dean hug you as you began to cry "I'm sorry." You whisper to them. Its okay." The boys say in unison before they pull away. Sam wipes the tears from your eyes "Alright, how 'bout some breakfast? Estelle's call." Dean told you, giving you a small, sweet smile and a laugh. "Don't worry, Estelle. We got your back. Always." Sam told you, giving you a smile "Thanks." You replied to the boys before rushing to Baby "Well, you coming?" You asked with a genuine smile. Sam and Dean look at each other as they laugh "We're coming." Dean called out to you.