Cheating boyfriends?

How likely is a guy to cheat on his woman if he knows he's good looking? He also likes to change his looks like try different hairstyles, facial hair etc.
I ve also heard from someone (not particularly reliable tho) that he knows he's good looking , is a bit of a player and used to be with a new girl each week/month.

He also is REALLY handsy, touchy and likes sexual stuff. How long can he stay loyal or monogamous when dating someone for a 1 or 2 years?
Cheating boyfriends?
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