I met a man this weekend. He is the roomate of a man I go to church with. He is also a single parent. He seems like a nice guy, has three jobs, teaching, tutoring at risk kids, and youth pastoring at another church. He has plans to go to grad school, then Duke divinity school. Sounds great huh?

My issue is this, I met another great guy not too mong ago and started to develop a good friendship with him when he started getting a little too forward. Not forward in the usual sense but forward in his place in my life. Demanding. When I cut back things got weird. I don't want this to happen again.

I had thought about talking to him about my concerns about "dating" and letting him know that as adults we should be able to remain friends if things don't work out and if we don't think that is possible I would rather not attempt anything at all.

Is that too pushy? Too presumptuous?

..depends...
in general, I would say it's usually difficult to impossible for a man to accept this type of 'deal' when he has feelings for you.
I certainly wouldn't advise starting this type of discussion the first week you met him.
Let your own feelings guide you, and well, if they're not strong enough, then that's a sign too, and there might be no need for long and complicated discussions.
Besides, are you sure he doesn't just want a friend too, he's a single parent as well, and sounds very busy.
...
just a few thoughts with the little info I had.
Good Luck (try to relax)
Daniela