[Bahamut]

I have been in a similar position fairly recently, although what was done was I was laid off without cause & without discussing anything - I was tipped off what I was accused of by someone privy to the details, and although I was fine with being laid off, the accusations did not match the reality.

In my case, having explained the details to my friends (including several females) and discussing with a former female coworker at that company, my mind was put at ease somewhat as to what was actually my fault (I wasn't blameless, but I did not do sexual harassment - there are some greater responsibilities that I failed on as a manager that was my primary fault). I was also already debating leaving the company at that point because I was dissatisfied with higher management, and it turned out to be a major blessing for me.

My recommendation is to keep work strictly work as much as possible. Small talk is fine, but when you spend time outside of work hanging out with coworkers, especially on the weekends or separate away from other coworkers (i.e. just another coworker and you), you put yourself at risk potentially. It sounds like what you did might be ok, but of course we don't know the full details so it's hard to really give an accurate assessment. One should be guarded in the event one has coworkers who aren't well-meaning, which is always certainly a possibility & the disproportionate damage that can occur sadly makes it important to be watchful & behave accordingly.