I love my best friend to death. She's been my best friend for the better part of my twenties. And I always thought that she would some day really become family. You see, my best friend is my brother's girlfriend, was my brother's girlfriend. They were high school sweethearts and for as long as I remembered, she was always a part of my family. Ten years of good times and bad times, they finally called it quits. Well, more like, she called it quits. I was surprised. Surprised because for so long, she held onto their relationship; she was extremely committed to making it work, regardless of everyone else's doubt, she always stuck by him and their relationship. The night they broke up; I assumed it was just one more of those times, where they'd argue, they'd fight, they'd take a break, and then get back together because life without each other was no life at all.
Two months after they broke up, I sensed that she was interested in someone she knew then better to be interested in: a cousin of mine. I didn't say much; I held my breathe; I assumed she'd know better. But she didn't.
Is it wrong of me to end our friendship? Is it wrong of me to feel like she cheated me and our friendship? Is it wrong of me to feel extremely betrayed?