Hello, PC - just catching up on all this.
You don't sound at all bonkers.
Hmmm. It's difficult - what you really need when you are in that 'provisional driving license' period following a break-up is a few non-serious-on-both-sides healthy, fun, lighthearted liaisons...and the problem ('problem' being too strong a word, probably) with this guy is that we knew all alloong that he was very strongly interested in you because of his interest from a while ago, the fact that he was willing to wait, and the fact that he clearly takes things like relationships seriously because he didn't hassle you to see him while you were still in the same house as exH, etc.
I can completely understand why you are slightly wary of the suggestion about a weekend away etc so early....and yet it doesn't seem reasonable to throw the baby out with the bath water and not go on dates with him, as he sounds like a nice guy.
Maybe you should just go away with him for a weekend fling, after which you will be besotted or repelled!
Just remember that you are not indepbted to him just because he behaves nicely, agrees to lots of dates-without-commitments etc. You are not obliged to make any heavy decisions at all - at any stage
Good luck...let's see what happens.