What Am I Supposed To Do?

The guy I dated last year that loves to fish, has a horse and have a lot in common w/ wants to go out. I feel like I’d be wasting his and my time. I know when "its there" and when "its not" and it’s not there. The passion the communication but mainly the passion. When he called the other day he asked if I thought about him romantically and no I haven’t; I don’t feel that chemistry w/ him. We like different things. So what should I do?