You seem to be to afraid to be friends with your coworkers because of potential consequences? If that is so, i'm sorry, you are missing out a great deal in life.
Unfortunately if someone chooses to interpret your words or actions in an uncharitable way there’s not much you can do other than move on. It’s their burden to carry, not yours (except when there are real world consequences but I do think that’s a rare circumstance)
On 1995, which is 30 years ago, it was neither normal nor accepted. You was major asshole if you did it and lawsuits were already won.
I was in the workforce 30 years ago and, no, it was absolutely not normal.
It was what we called an "HR violation" and a "Career limiting move."
Not sure where you were 30 years ago, but except in bordellos and strip clubs that wasn't "normal." Not even close.
That was a huge no-no 30 years ago, at least in the US. In fact, it was a major no-no at my first job in 1979 and would get you fired.
Some time ago I said to a coworker who I consider as a friend : 'I enjoy your company'. Another (younger, italian) coworker told me to be careful after I said to him 'she has such a soft voice'.
I really did not expect that reaction. To my feeling, no line got crossed and the fact that we are still friends and at times even share our thoughts about love and relationships in general, proves that we trust and respect each other.