Tell him you have a boyfriend and aren't interested.
being as i would see it from the boyfriends point of view tell you boyfriend and if you boyfriend is the type of guy i am help your boyfriend clean up the mess after he is done with him
Stop him from flirting or hang up. Simple.
is that really a friend? punch him .. do the uppercut.
it doesnt matter what he does.. it matters what YOU do!! do you flirt back?
If you don't know the answer to that maybe that's why your boyfriend won't fully commit to you (per your previous question).
I'd be pretty confused.
if you are also interested,go after him-afterall we have one small life to live in this earth&your boyfriend also may have these type of small secrets in his life,which you do not know...
Flirt back. It doesn't have to go any further.
go for it. cheating is fun and your boyfriend doesn't have to know.
now we know who the guys is that called
try to be sporting