I have been with my boyfriend for a year and a half. I first saw him in the UK but before anything really started I had to move to Australia with my family. We "internet dated" from then and still are now. When I first moved I was heavily into drugs and failing school and eager to go home to the UK. Mostly due to the boyfriend I've straightened up, quit drugs, and going really suprisingly well at school (A's or B's mostly).

All he talks about is how great it'll be when I finish my last year of high school this year and come back to the UK to be with him. I don't want this anymore at all.

I have a relationship with my family here and none with the family in the UK
I have a brilliant job that I've managed to hold down for longer than any I used to have.
I have a group of friends who I love that are all sober in reguards to drugs and finally feel accepted by the people around me.

The university courses here are amazing compared to the ones back home, and a lot cheaper too. Now that I'm actually sobered up and trying in school Iknow I can get into them.

I want to pick School over him. I want to pick Australia over him. But I love him.
I don't know how to end it, everytime I try to he manages to talk me out of it, instead of taking my reasons he works out a way to undermind them and basically strip me of any way to explain that this is what I want.

I need advice please, how do I end it what are some sure fire ways to stop a relationship?