What if this happens to you?

Definitely confront. Cheating is something that I cannot forgive.

Confront. Haha and listen if there is any explanation

Stalk him and surprise him when he goes to meet her.

Gather more evidence before confronting him

if i have sufficient evidence i will confront

Play dumb and gather info before confronting

It depends. I want to gather evidence first.

Play dumb gather proof of it then confront

Play dumb and let him have a taste of it.

Catch on the spot and see what he says.