I was widowed 8 years before I decided to look for "love" again. I found two men and it was like a school girl crush with one of them and a comfortable old shoe with the other one. The 'crush' was a smoker and probably an alcoholic and had been married 3 times before, so I made the wise decision to go with the old shoe. We have been together almost 15 years and although we are still not married (my choice) we do live together. You obviously do not want to get married or live together, so why stay together? He does sound like he wants to use you and that is certainly not a good reason to stay with him. That is my two cents! Goodluck!