Love is the most beautiful feeling. But there are always some who instead of savoring the happy moments, decide to hurt their partners. If you wanted to cheat anyway, couldn't you just break it off and then do your business. At least, no one would get hurt. Greed, I tell you.
There's no good way to discover if your suspicions are true, but a bad way definitely would be to walk on them right at the moment. It's unimaginable how one would react if unfortunately such a situation does arrive.
Here are some tales.