Why do people stay with cheating partner?
What do you hope to achieve when you caught your partner cheating?
Get back together? Can you trust him/her like you used to? Do you still see him/her in the same light?
Revenge? And what, land yourself in prison? Is it worth it?
Closure? What closure do you want? Is closure going to bring you peace? If your partner lies, would you know?
If your partner cheats on you, he/she is not a trustworthy person. Leave, move on. It's not that difficult, especially so if you are a man being cheated on. Always remember, su lang boh su seh. You obsessed over it, you lose your dignity. It's that simple.