Should I tell on my cheating brother or not?
So my 17 year old brother's phone vibrated and I mistaked it as mine so went to look at it. The message was from "Zoe" a girl who is not his girlfriend and it said "I love you too". Me, being curious (and, yes, nosey) decided to look at the previous messages and I found out that he sent the same message to his girlfriend and "Zoe" saying how much he loved them and how they were the only ones for him. Should I tell his girlfriend or mind my own business?