Haven't been this angry in a while

I know its none of my business but I think this girl made it mine. See the story is my best friend got his first girlfriend. He's been such a happy guy after that and I was so proud of him. I get home and she's in a relationship with a new guy, I said I thought you were dating Matt. She then said not anymore please tell him for me. I ****ing lost it I said and I quote "***** he really liked you and you practically cheated on him I had a bad feeling about you the whole ****ing time" sorry for my language I'm just really angry. Now she wants me to tell him that she cheated on him. I then told her don't go near him ever again because he deserves so much better then you. I then blocked her, I don't know how he will react I don't want to see him hurt. I did what I could and I tried to defend him I wish I could help him any way possible. He's my only best friend and I don't want to see him hurt.

Definitely not your responsibility to tell him for her. She is a coward not wanting to face the consequences of her behaviour herself.:thumbdown: Sounds like your best friend is better off without this girl anyway.

I know it really made me angry I don't want to tell him but I want too.

I think its best if your friend finds out on his own. Based on my own experience, I fell in love with a girl my friend told me not to fall in love with. I felt my friend didnt know her like i did and was kind of mad at him for telling me this. Point is when someone is in love they sort of lose perspective and clarity. If it is how you explained your friend will find out very quickly all by himself. If it was life threatening then yes, say something. If not let nature take its course.

What makes the situation even worse is that she has put you in a bad position. It's definitely not your responsibility to let him know. However, if he finds out on his own then somehow finds out you knew about it and didn't tell him, it might make you look like the bad guy as well. Sux for everybody except the girl who probably doesn't care to begin with.

Tell her "No, YOU tell him"

You sound like an amazing friend. I think it is her responsibility to tell him. But knowing she is a POS you might end up having to do it in the end.