Missing the mark..making it blend.

It's been over a year that my boyfriend and I have been together and almost a year living together. He is a great man and I care for him immensely. But sometimes I feel there is just something missing in our relationship. I'm a jersey suburban girl and he's a Brooklyn boy we make it work but our backgrounds are very different. I feel like I've just hit a wall. It makes me sad because I do want this to work.