Is he over his ex?

The first time me and him ever met he couldn't stop talking about his ex girlfriend. Even on our second date he brought her up about two times... I told him to stop a couple of times and he did.. and the fourth time me and him went out on a date he admitted he wanted to find someone that can make him forget his ex girlfriend. so I accepted it thinking it would stop... and he will get over it sooner or later... but now that we are in a relationship for about 3 months he still kind of brings her up... every once in a while... he told me he was about to marry her and such... and when he talks about her he says "my girl" and not "my ex" which kind of bothers me a lot... its pretty clear he isn't over his ex.. what do I need to do to get him over his ex?will he ever stop? do I leave or stay? someone please help me... because I'm starting to love this guy...
Is he over his ex?
Post Opinion