Okay...so in August I broke up with my boyfriend of six months. He had become obsessive and borderline stalker-ish. My second best friend seemingly took his side over mine, she continued talking to him and said he needed comfort too (he does have his own friends) even though I felt terrible breaking up with him.

Months passed and she continued talking to him online. I confronted her about this and told her it made me uncomfortable that he still had ties to me and that i'd appreciate if she stopped---afterall she was MY friend--not my ex-boyfriend's who moved to Australia. She promised me she would not get together with him and it would all be okay even though I asked her to please stop.

Just today she informed me she is dating him. She said "it just sort of happened", but how could that be? She went out of her way to talk to him, not just bumping into him as he lives in Australia now. She knows it hurts me but is still dating him. I hung up on her after she told me and texted her that I don't want to talk to her for awhile. This is really hurting me that she would do this after she had promised not too, and that he was my first love and everything.

Do I forgive her? Encourage her happiness with him?

I've heard the 'bros before hos' but I just don't know right now...

Any insight would be very much appreciated!!
Thank you.