I'm dating a guy that's 3 years older then me and I love him sooo much
And he loves me!
He's turning 19 in a couple months and ll still only be 15 or 16 years old... im scared oncce he starts going to bars... he'll dump me

He's a great guy, and I've been datin him for 9 months now. We're basically glued at the hit uless I'm at school or I'm working... and all his freidns love them and I love them!
It seems like a perfct relationship, an di really don't think I could love him anymore
But what should I do about this whoel 19 year old stuff

If he respects you (which it sounds like he does) then age shouldn't be an issue, I guess you just got to talk to him about it and tell him that you trust him completely but are worried that he might stray from the relationship once he starts going out.
It sounds like he loves you very much, and same with you, so just enjoy your relationship and don't worry about it too much
I hope I helped..

Speak to him, express how you feel.

If he's truly the great guy you think he is, you shouldn't worry; is he currently a partier?