Redditors who had sex with their best friend, how did it happen and did your friendship change afterwards? (Serious)

We'd been friends in high school, and we became closer friends through our 20s and early 30s, even though we lived up the street from each other as kids. We had traditions like every Christmas eve, I'd walk over to her parents place and we'd watch Christmas movies and drink.

She began to confide in me that she suffered from some mental health issues, but was working her way through them. I could see the change in her for the better, and I was in her corner 100%. I wound up going through a difficult breakup, and she was my support system.

One night, she took my to a concert to cheer me up, and she told that she had feelings for me. To make a long story short, each day we spent together seemed better than the last. Our parents did the "I told you so" thing, and everything just seemed so natural.

I wish this story had an alternate ending. While we were together, her ex-bf continually contacted her, each time he would make a mess of her emotions, as he'd say some pretty underhanded shit. We decided to end our relationship and stop seeing each other. She knows I'll always be there for her, no matter what. I hope she's doing okay these days.

Sex changes everything. And I wouldn't have done anything differently.

/r/AskReddit Thread