Well, I admit I really love that bit at the start, nothing beats it. Like, before you're even going out. Looking back it seems so obvious you liked each other but at the time it was all nervy and exciting. However, I think if I kept dumping long term boyfriends just to get to experience the excitement of starting new relationships then the new relationships would kind of..lose their excitement. Because I'd know if it did work out I'd always get bored eventually and dump them to get a new relationship etc..you know?
Having said that, now my boyfriend and I are hours apart it is more exciting in a way. We know we're going to see each other in a month or whatever, and it's all exciting and weird when you do see each other again! Although obviously I'm not suggesting you move to be miles away from your boyfriend (maybe you are already, I don't know).
Cxx