give me your HONEST opinions...

is it wrong to give a guy a taste of his own medicine...like you see him play all your friends then when he gets to you....you play him...

Honestly I don't think it is. You're pretty much just leading him on, when it seems like all you do is want to 'have fun'. And leading anyone on is just plain wrong. So yeah, I think it's wrong.

don't worry I wont let myself get hurt...I just have fun giving him a taste of his own medicine...

It is probably best to just move on. If you aren't going to be able to be with him because of trust issues then what's the point? Also, if you have seen him treat other girls badly, then there is nothing to say he won't do the same to you.