I'm sorry you're having to go through this merry-go-round. But you're being really disrespected here. I'm afraid to say you seem to be attached to a relationship that has become toxic. You were clearly put on the shelf.

He talks about having a future with you and then says he can't go official in the next 5 years? And it makes no sense that he got jealous of you staring at his friend when you were high but then he can go locking himself up with the girl who kissed him.

To be honest, there's no point in counseling in a bf/gf relationship with ons and offs like this. It's up to you to revaluate it and if you want to go on with this.