Would you tell a someone you're not friends with that they're being cheated on?

Anon-01
So let's say your friend Amanda is dating a guy named Rob. You've met Rob a couple times you follow him on the socials but you're not friends with him personally. Your friend Amanda is cheating on him. Do you tell Rob?
Yes, Rob deserves to know.
No, it's not my business.
Select gender and age to cast your vote:
Would you tell a someone you're not friends with that they're being cheated on?
10 Opinion