*repost*. If your son cheated on his s/o would you punish him?

Ja
For some reason, my other post stopped letting people vote? I'm not too sure what happened there, so I'm reposting it!
Let's say your son's S/O informed you that they broke up because he cheated on them. Would you be mad? Would you punish him? If so, how would you punish him?
Let's say he's 17, still lives with you, and you provide everything for him. Clothes, phone, transport, money, etc...
(I gave him a different age this time so it's more realistic)

Vote below to see results!