Don't be that woman that's always apologizing for someone else's bad behavior and always thinking it's her fault.

Some people go as far as hiring a private detective when they suspect their partner is cheating. You have no reason to apologize to him. It's time to leave him, and your "friend."

Ex boyfriend...you made a little typo...

surely you can't be that desperate? then again none of us know ops situation...

he is one filthy manipulator, leave him for good or regret

Why did he give you enough suspicion in the first place? Dump him. He sounds like he's going to end up being that nutter of a boyfriend that ends up beating you and making out its was you fault and you made him do it..Get rid quick and find a new guy..

It was wrong for you to invade his privacy however it's not nearly as wrong as him cheating on you with your best friend! Some people won't admit to lying or cheating until presented with hard evidence. Dump him! He's probably lying about other things too, this is just one thing you found out.

Plot twist

Grow a pair, figuratively speaking, and verbally smack down your "best friend" and hopefully now Ex-Boyfriend. You have nothing to apologize for.

Weak