How do I tell him?

I have a small problem. There's this guy who flirts with me and he's married and older to me. I feel he's wrong and I feel he's crossing his limits. I am slightly uncomfortable and embarrassed and want to tell him that I feel he shoudn't do that. How do I tell him? And I definitely don't love this guy because I try avoiding him now a days

youd be better telling him the truth as long as you hide this feeling its only going to get worse to tell you the truth he's married so tell him where to go and dont take any crap off him either trust me youll be doing you anh him a favor think of it like this he is out of your league

But is there any way I can tell him I am uncomfortable and that he should stop this and at the same time maintain the friendship?

I met a guy while on vacation and told him I was divorced, I am seperated not divorced and He is coming home from iraq IN 3weeks I am unhappily married obviously,how do I tell him? We fell in love,but he loves a liar.