It has been 4 maybe 5 months since Talia died hell Gabriel was shocked since he had just lost his daughter and that his world was crumbling he faked his death and helped Metatron, to get cas to play his part in the story. But he was still upset thinking he had caused her death.

"SHES CRASHING"
"CLEAR!"

One night Gabriel went to see her mothers grave "Shophia, it's been a while...Tals died she was only 14 and soon to be 15"

"CHARGE TO 200 RESUME CPR"

"Soph what did I do wrong, that night started so normal and then just because the guy was drunk he took you away from your 4 year old daughter, then my daughter saved me from my brother killing me, what do I do"

"CLEAR"
"COME ON KID COME BACK TO US"

"I feel so weird talking to you, it's been years I would say see you in heaven but that wouldn't help"
He sighed and a single tear rolled down his cheek, he smiled then left knowing that the angels had fallen and that there would be no point to return, he couldn't just appear in front of the Winchesters and say 'hey guys guess what it faked my death, and my daughter was killed thanks to big bro luci' it would never work

"SHES STABLE LETS GET HER IN TO THEATRE"
_

Gabriel sat on the bench, outside the park where he would take Talia to play when she was 3 "excuse me sir, are you Gabriel? Talia Smiths dad?" A voice spoke up
"Yeah why" he said looking at the ground
"Eh well I need you to focus she's about to come out of theatre" he looked up really confused then realised it was a nurse.
"Your friends alerted us you would be here" everything around him changed he wasn't sitting outside the park he was sitting in the hospital with Sophia standing to the side with the Winchesters and Castiel "Cas what the hell is going on"

It took ages for cas to explain to Gabriel that he had passed out. "We were at the park and we were held at gun and knife point expect the attacked Talia and she was stabbed in the lower abdomen and shot in the right shoulder me and Dean tackled them to the ground while Sam rang an ambulance"
So he had dreamed Lucifer stabbed her, speak of the devil and he shall appear "how is she doing" lucifer asked Gabriel before he could answer Michael appeared "so any news?"
"Yeh she's about to come out of theatre"
"Ok that's good Castiel called us explaining what happened, I must return to heaven" Michael said and disappeared, Lucifer rolled his eyes "you know where I am" and vanished
_

Talia woke up and smiled her dad had his head on the bed and was holding her hand and her mothers hand, Sam and Dean had fallen asleep and Cas staring out the window, she looked for something loud and saw her dads phone on the bed, she unlocked it and went to the music app and put on Highway to hell at full blast startling everyone, "RISE AND SHINE BOYS" she said with a laugh, Dean had started singing along and forced Sam to join soon the full room was singing and well Cas just stood and looked confused " IM ON THE HIGHWAY TO HELL" they all sang at the end she smiled and Hugged her dad "I had the weirdest dream that felt so real you left, mum died in a car crash, and uncle luci went to kill you" she whispered he let a small laugh and broke the hug looking at her in the face "I had the exact same one"