Ok so I'll put you guys in context. Since I was in high school me and this boy, who was also my "best" guy friend, had an on and off relationship until we graduated. That was 7-8 years ago. Every time we tried getting into a relationship he could never give me "enough" so that's why it always ended. We were still close friends until about 2 years ago, we just slowly grew appart. He is now in the army so we barely talk. Even before that, he moved to an other city so that's when we really stopped talking. I wasn't mad about it or anything because like I said we just grew appart.Fast forwarding to now, I am currently in a relationship of and it's going super well, we are buying a house (just to explain how serious this is). Last night, I had a dream that this other guy wanted to get in a relationship with me and said to me exactly what he was going to work on to make it work ... We were in a store and he tried to kiss me. In the dream, I didn't cheat because I was in a relationship (with my actual boyfriend). BUT I told the guy that I couldn't be with him NOW because I had a boyfriend. After that, he said that in 6 months he was moving back here (our hometown) and that he was going to wait for me ...I then told him that I had to breakup with my boyfriend because I wanted to be with him. (????!!!) In the dream, I was confused because I remember talking to my sister about the situation that had just happened and I didn't know what to do.
What does that mean ... I'm really confused. 

It sounds like your ex is a symbol for an aspect of yourself that has gone unacknowledged (shows up as another person from the past). There is a theme about 'commitment' in the dream, within the context of 'shopping' (takes place in a store). You grew apart from your ex after he moved away with no hard feelings, and in the military he was likely moving frequently. I wonder if buying a house with your current boyfriend is stirring up feelings about being able to get out of a relationship easily. There might be some part of your personality that wants to be free to 'move on' from relationships or romantic situations without hard feelings or even any discussion. In the dream, it was distressing to hear that this trait (represented by the ex) was replaced by a definite and explicit plan, and a promise of commitment whether you wanted it or not. This dream might be tugging for you to think more about what reservations you might have about settling down with your boyfriend, so that you won't be blind-sided by unmet expectations and what you really want in the relationship. Buying a house is stressful, even if it is exciting, and a big investment - just like our relationships can be big investments!

Hope this helps. It is an interesting dream and thank you for sharing.