The story goes as is; my best friend, my boyfriend and his friend were all drinking. I decided on truth or dare with all four of us. Everyone agreed to play. I dared my friend to make out with my boyfriends friend and everything and they did. I also dared her to let him grab her boobs and suck on them. I THEN dared her to make out with my boyfriend (to test him and her) and she said no. My boyfriend replied, "No that's innapropriate, we're in a relationship." So I said okay. Then, I later dared her again to make out with my boyfriend and I said I was fine about it. He asked me, "Are you sure?" I said, yeah. So they did. Then the night continued and I asked her to let him grab and suck her boobs and he was all excited and did it.

I couldn't believe they actually went through on it. More my boyfriend then friend, because I expected that from her and not him. He played with her boobs and sucked on them, grabbed her and made out with her about six times. I was devastated they actually went through on it. Now, I'm not one to be so insecure but the image of him and her has driven me crazy. I thought I'd be okay, yet I thought my boyfriend was a lot different then that! So I was dared after all of that to make out with my boyfriend's friend so I did willingly obviously for revenge.

The thing is he says after that, he's not going to do it again and blah blah. Yet, he saw her the next day and was all smiley and invited to drive her home and she's flirty with him.

I'm at the point of breaking up with him because I have tried to forget about this and I really can not and I have lost that trust with him. I figured he was attracted to her 'cause he follows his friends because his friends are all into her and she did stuff with all of them so I think he wanted to hop on the boat. Anyway, I just need some very good psychological advice on how I can get over this and the jealousy of being worried of them two being into each other.

You chose the game. So, you need to deal with the consequences.

You should do him a favor and break up with him. You got what you asked for when you decided to "test" him... now you can't handle it. The whole idea of testing him is ridiculous and childish. Now you're all wrecked because he went through with it. If you played those kind of games with me, I would have done it as well.

Looks like all you drunks flunked the common sense test.