So what do people think?

This isn't really a major issue but I just wondered what peoples opinions were.
There is this guy who is really really sweet and the perfect gentleman. He's been quite flirty with me lately and I get on with him really well.
Only problem is that he used to go out with an ex best friend of mine. They went out for ages and although I don't talk to this girl anymore, it still seems quite strange that he's like this with me and I don't know whether I'd be able to take things any further.
Opinions please XxX

What happen to you and your ex friend? Because unless it is something major, I see no problem in you going out with this guy. If your ex friend was still your friend and they broke up and he is now going after you, then I could see why you are hesitant.

I would be hesitant like you are, but seeing as your not friends with that girl anymore, her ex is fair game.