You are Trevors son/daughter.You once had a very truamatic experience after your mother died.And since then you've been messed up.you are now(?),its been years and you can't forget how the experience felt.It was so bad your brain engraved it like a forever fatal scar.

You hug yourself around the waist just thinking about it.Suddenly the front door opens,Trevor enters,a neutral expression on his face.he flinches slightly as he suddenly sees you sitting on the couch,in that position,at first he just processes it before walking to the kitchen.

"How was your day."he said.his voice carrying a hint of slight wariness in it,though he at least put effort into his 'odd' greeting.