Confused in relationship?

I've been with my boyfriend for almost 3 years now. It's fair to say that we have had our fair share of dramas and heartaches in this period. I'm 22 and he's 27. I love him a lot. But recently I just don't know if this is enough. But the other thing, is that I feel so guilty for thinking this way because I actually do love him, but I feel that I could be happier with a more open guy. He's loving, yes, but doesn't give affection as often as I would like. He hasn't got a job at the minute and I am working very hard plus doing all the house work and cooking. He spends most of his day on the pc. I just don't know what to do or how to feel... your thoughts would be appreciated