Really have to agree with Perna here...was going to say the same thing. Not all men are movie star lovers and someone older is going to be more staid. And if you "need" attention so badly that you flirt with others then no one is ever going to be good enough because you will always find someone else to flirt with.

It may be too that he sees your flirting and flighty behaviour as something he cannot rely on to stay with him. He's been hurt to and you don't seem to take that into consideration...ease up on him and relax a little...it might work