You found your partner with another person, but it was your fault. How do you handle this?

[Removed]#####This is a totally hypothetical hypothetical scenario. <br><br>Let's say you ask your partner to do something, but they say no. You keep insisting, and eventually they give in, and it turns out badly because it was a bad idea. You find out they've been unfaithful to you, or they get into an accident, or any other number of things. <br><br>How do you handle this?