When you're in a relationship, the key element is trust. If there's no trust, then you'll struggle to make it work. A make-or-break for most people is that their partner isn't a cheat. Cheating is a real turn-off, and if someone realises that their partner has cheated on someone in the past, but hasn't been transparent about it, it could be really upsetting.
One woman took to Reddit's 'Am I the a**hole' forum to explain that her boyfriend had told her he 'wasn't that kind of person', and that he would 'never do it to her'. But when she was at a party with his pals, the truth came tumbling out when someone mentioned a woman's name she'd never heard before.
