you need to go out and socialize. me and my gf are the same way. we really clung to each other in the beginning couple years of our relationship. its not exactly a bad thing, but its not healthy either. you get too dependant on each other. but now, im meeting new folks, and shes joining a shitload of clubs and doing mucho volunteering so shes meeting and hanging out with quite a few people too. and i think we are both much happier, but we still love each other like no other.