<human>: So we've been going out nearly 3 years. We get on really well. Going to be brutally honest and say I never found her 'hot', but we got on really well. We never fight, and she is always so nice to me. Would definitely be marriage material. 

All i worry is that there is no 'spark'. There never has really been, but we've got on so well I have never worried about it. I have had it before with girls. Because its getting to move in together time ( roommates annoying, house is not great ) and I generally would like a change, it makes me wonder about the relationship. I travelled for a month on my own and really liked the independence. She didn't like me being away. I have been the needy one before, so i know what its like. 

I did voice some concerns, and said to her i was unhappy, but i wasnt sure what was making me unhappy. ( Still dont know ). So she let me go on this month away, which i loved. I still find other girls really attractive, and sometimes wonder if i was single. Cognisant of greener grass etc.

I know could seperate and see, but we have had two very good years, so don't want to throw that away nonchalantly either. What should I be thinking about? What are the deal breakers?

Can you provide a brief overview of the text?
<bot>: Am i over worrying, just because we're at that stage where people move in together, or should we go our seperate ways?