Am I wrong for disowning her as a friend?

You can't disown her for something that was completely her decesion. You can be mad that she lied about it but not because she actually did it. And my thought is that she is only doing it to feel wanted or to make you jealous and come back to her. Did you break up with her?.if so maybe she is bitter. But why would it matter to you if she was with another guy? Don't worry about her sex life but rather you own with your gf.

I really don't know why she has to be honest with you about her sex life. You have a girlfriend right? So, you keep her has a pu**y in the glass box to be broken in case of emergencies? If so, you are probably driving her crazy with your push pull tactics. Either you want her or you don't.

Who the hell cares if she slept with who, when or how many times she did it! You just said that she was being selfish by fooling around with other guys even though you two weren't together. You also said that she got mad at you for having a girlfriend, and your tone would lead one to believe that you were surprised by her response. Lets get real here, the entire premise behind you threat to delete your ex is an issue of control. You were trying to control her and she was trying to get a rise out of you by bucking that control. The only good thing is that hopefully you two won't be in contact for a long time. Let me rephrase that, you owe it to your current girlfriend not to be in contact with your ex for a long time!

I don't understand. Why does it matter to you if she was used for sex? If that's what she wanted, then let her live her life; people don't have to live their life according to your standards. In the scheme of life, what you're doing is immature, selfish, and arrogant.

If my friend decides to go film a gang bang porn, that's her business, not mine. Now, if you want to disown her because she betrayed you as a friend, or because she sucks as a friend, then that's a different story.