Dear Tnaer123:

She cheated on you many times over the course of years, never telling you about it. She was able to be with you and with another man month after month, year after year, not feeling enough guilt to either stop or to break down at any one time while  with you and say something like: I am so  sorry, I’ve been cheating on you, so sorry.

This kind of cheating is way more than a single cheating-event.

If I was you, I would separate from her and divorce her as soon as possible.

anita