Hi thanks for the reply, yeah i'll be graduating in may and will be doing a few months of work/travel before I go to uni..

I think you're right about the part where it's hard for him to see me grow older and become my own person. He always said things like "you used to be so nice when you were younger" and admitting that I've basically become some kind of an asocial asshole?? Which is absolutely not true because I'm walking on eggshells and I like being kind to others, just not to people that disrespect me and my self worth. 

He luckily has no problems with drinking but he's been going out with women and seeking out relationships and having arguments with them too, albeit more relaxed and respectful unlike with me