It is probably the worst thing that can happen in a relationship, but unfortunately no one is ever spared from the possibility of being cheated on. Whether you and your guy have been together for a month or a year, nothing can prepare you from the shock and pain of knowing that he's been unfaithful. Some women call this their relationship deal-breaker, and a lot of couples never really recover from something as devastating as this sort of breach of trust.

We all know of a friend, co-worker, or family member who's been a victim of infidelity in a relationship, but we want to know if you have ever been cheated on. Take the poll to let us know!

(Photo by pedrosimoes7 via Flickr Creative Commons)