Hi, I've been dating my boyfriend for almost two years. We have been long distance for about two months now. He is Bipolar and has never been on his medication since we got together. I've seen him rapidly swing from depression to mania and back and forth. I've always encouraged him to try medicine again and/or to see a therapist.

My problem is that he goes back and forth all the time. Sometimes he tells me that I am awesome, he loves me, I'm wonderful, he doesn't want to lose me. Other times he is really, really cold, and tells me that he isn't programmed to understand love and he wants the constant spark that you have when you first meet someone and that I am too stable and predictable. He is always back and forth and it really hurts me, because we've already broken up before due to a manic phase he had. He begged me to take him back two months after the breakup and I only did so on the conditions that would seek help and take care of himself. Things were going fine the second time around. We spent less time together, went on more dates, had more fun. But now that we're in a long distance relationship (only supposed to be temporary, until he moves out here for work), it seems like he doesn't realize or remember how great we can be together.

I'm going to see him in two days when I visit my hometown. I'm slightly panicking right now, because we had an intense, two hour long conversation last night about how he wants the constant spark and isn't programmed to feel love. I really care for him and I can see him going back and forth between his depressive and manic phases. He's finally officially going back on medicine (has an appointment). we decided that he should get back on medicine and then reevaluate the situation since he is always going back between highs and lows. I'm really worried that if we breakup again, he'll do the same thing and come back after a few months. I don't have the strength for that again.

I know I can't force someone to love me or care about me, but what can I do to show him again how great things were when were in the same town and how it could be great again when we are working the same city? What should I do? Should i leave him alone until he picks me up from the airport or should I contact him?