OP was close enough to the truth of the situation that they recognized themselves in an anonymized Reddit post.

Meh. I once made a connection with a girl from /r/r4r and things went super weird. I was going through some shit, and I ended up blocking her. Not necessarily the mature response, but so it is.

I saw another post of hers on /r/r4r later, which portrayed the situation in a manner that didn't tell any lies, but was very much misleading, exaggerating every bad thing I'd done while gracefully eliding over every weird thing she did.

It's possible - maybe even likely? - that things went down roughly like OP said, but it's also possible that the specific details of everyone's activities are being presented through a particular filter.