Boyfriend..

When my boyfriend gets upset I honestly don't know what to do. When I was growing up every guy I've grown up with/dated when they were upset they'd yell at me to leave them alone. My former boyfriend when he's upset he wants me to cuddle with him/kiss him. My natural instinct is to get away and leave him alone to cool off but it makes him more upset that I don't try and help. Is it wrong of me to just walk away wen he's upset/angry?? I'm so confused. I don't know what to do and I need help :/ I'm planning on moving in with him next year but I honestly still have no idea how to handle when he's angry and I kinda need to know this for wen we move in together.. Please any advise is needed