AITA for not letting my friend know about her situationship?
So my friend (19) has been talking to a guy for months now and he never wanted to be seen with her because he is a dick and she keeps going for freaks, and I (20) had to endure so many conversations about this boring little boy since September last year, a week ago I found out from another friend that he was only getting closer to her just to have sex but I thought that was extremely obvious since he was not making any moves to her unless it was sexual. (They never even held hands, everything was over the phone)
But then yesterday she cut him off since she realised he was only using her and then i remembered what my friend told me so then I told her, and she got extremely upset with me for not telling her sooner? As if it wasn't obvious but i still said sorry to her of course because i should have told her. Now she's ghosting me on everything and all i want to do is have a mature talk with her and I have literally been spamming her on everything because I miss her and wanna talk to her, she has screwed me over before (due to a boy) and I still forgave her, she has given men multiple chances but won't give me one. I know i should've told her but at the same time she needed a learning experience, i'm not going to be around for every single guy that she talks to.
AITA for not telling her?