To be totally honest this is what’s happening.
From the very start of your relationship...
He’s a guy, he’s just living his life... you come along and you’re pretty cool, you’re easy to talk to, yes he’s aware that you like him and it’s a good feeling when someone likes you so it’s no big deal.
Next thing you’re sending message after message... then you’re complaining at him.. he just doesn’t give a shit, I mean when you’re no drama sure but he’s can’t be bothered with that crap so yeah he points out “I’ve got a girlfriend” and he makes it VERY obvious HE HAS A GIRLFRIEND meaning “back off bitch” you’re getting to be too much work.
Now the more you start apologizing and trying to get his attention you’re just pushing him away.
If you want to be back in his life. IGNORE HIM if you are at the shops and you see him, LOOK THE OTHER WAY!!
I promise you’ll hear from him. It’s f***ed up but it’s true