I recently left my husband... and while doing that met a friend.?

The friend pretty much made it clear that i wasn't his type. Cool, but we flirt pretty hard all the time and he is always seeking me out at work, leaning on me, and what not. he gets feisty with me but if i do then he says lets keep this friendly... which totally makes me feel like a fool... do you think he actually likes me and is freaked out that he likes someone so different from his "type", or am i just amusement? i just enjoy being around him, having fun, and his quirks, which there are many... and i am so forgiving and easy going about everything... but i think still being married, and having a child might have freaked him out a little, he didn't know all that when we started talking... and i don't mind being friends, but I can't take all the closeness and flirting and what not, i would have to make sure all of that backed off and then things probably wouldn't be as fun as they are now... and i don't want to lose all the fun i have with him at work... but i don't want to get used either....thoughts?