Around Thanksgiving last year, a woman I had been crushing on revealed she was interested in me, and we were together up until a few weeks ago. We went well together, though she was in her 50s and I in my late 20s. Things were great but since she had denied herself so for long in regard to other women (she was getting out of a 25yr marriage, her husband knew everything from the beginning) she expressed that eventually she'd need to see other women and find her community. I said okay, but given how much she seemed to like me I wasn't too worried. Enter our mutual friend, who considered me a close friend and my gf even closer. My gf had revealed the secret of her gayness and the fact she was seeing me to our mutual friend a few weeks earlier. Then one night the friend moved in on my gf and without hesitation, 2 days later, my gf left me. How angry should I be at my former friend? My ex? Because I'm extremely angry and hurt.