, what’s the point in me finishing CEGEP if i move to England cause it won’t even be valid there?

Most diplomas can be validated in some way or another.

so i’m thinking of maybe dropping out my CEGEP program and moving to England and start a bachelors degree there instead, which would still be valid in Canada if we ever broke up.

So you've got the money lying around? Can you pay the international study fees, and the living costs? If you happen to break up during the year, are you able to afford moving out etc.?

the thing is, i don’t know if i wanna move countries. i love England, but i also love Canada and all my friends and family are here, my la gauge and culture, my CEGEP program that i love, my good job as well. but in England, i could be with my girlfriend, move out with her and go straight to uni (in a course that i was maybe thinking of taking even if i stayed in Canada).

You sound young, and if you're young, you should never just move for an SO. If you really want to live in England and get your degree there, then do it, but else? I'd just stay in Canada, do your Cegep, and then see how things go.