Relationships & Dating

Hi everyone, I'm after a bit of advice please. I work with this guy, and have done for the last 3 yrs. We have always enjoyed a laugh and a good old flirt but I wasn't really interested in him until now! And now I can't stop thinking about him. He's everything I look for in a guy, as in he's professional, successful, funny etc. We are mates too, so have discussed moving things on - however there are a few things that seem to stop us. Firstly, he has been in two serious relationships and says he's been hurt twice. Between these two major relationships he has played the field in a huge way (which actually makes me feel sick - only joking) but seriously he has slept around alot (don't worry I'd get him checked first!) hehe. He excuse for this is because he doesnt want to get 'close' to someone else who will end up hurting him, hence why he has no-attachement sex. I've tried to explain that he can't live his life in the way otherwise he will never find that someone special. I dont know if he is saying this to justify his number or if he is really afraid of getting hurt again?? I am completely different in this sense and don't sleep around. We have talked about sex and this is where we disagree. Mainly because I dont just want to be anther number in his statistics.
Having a heart to heart the other night he said he would love to find someone to settle down with and be comfortable with, not going out every weekend on the pull. What should I do or what options do you think I have? Should I ignore him, although this would be hard to do, should I hook him with great sex or should I just wait? Please help