My boyfriend tied me up. I got very excited when he touched me. But he put his penis in my mouth, knowing I never want oral sex. I was very angry and feel I cannot trust him anymore. Should I break off the relationship?

Misunderstandings are frequent, even among people who know each other well. Talk with your friend about what happened. He might have thought that tying you up gave him the freedom to do whatever he wanted. So try to find out whether he went too far deliberately or this was in his mind part of the game. If he is really untrustworthy you can break off the relationship. But if it was a miscommunication it’s another story. If you ever try bondage again talk about it beforehand. Make sure your lover knows what he can and cannot do when you are in such a helpless position. Also establish a safe word.