Hi ~ I can certainly understand why you're afraid after 2 failed marriages. Many times we're drawn to the same kinds of men over and over, so you're smart to be reluctant to enter into this relationship.
I would take it very slowly. Give yourself time to REALLY get to know this guy. Find out all this quirks, likes and dislikes. See if you can talk to friends and even relatives if you get the chance. And if the chance ever presents itself, even talk to any ex's he might have to try to find out what kind of relationship he/they had and if there was any abuse in it. He sure can't blame you for being careful after what you've been thru.
I wish you the very best. Please let us know how you came out with you? God bless and take care~ Hugs, Lee