How’s he going to learn?
If he survives, I think he’ll learn a lesson..... of some kind.
From his next girlfriend. Or the one after that.
Cheaters are not careful by nature (as this story proves) and sooner or later he is going to shack up with Mz Loony, or her crazy family.
Or catch something that can not be cured with a quick trip to the free clinic.
Balance there is.