I feel like maybe this situation could be an opportunity to think carefully about where the line actually is. You have had a new experience and we all revise our perspectives when we gain experience. I used to think this was growing up, but now I realize it's just how life works.

Of course you were not evil. But it would be pretty miserable for you to not grow from this, and learn that situations like this one are extremely nuanced and not at all as black and white as people insist that they are.

A commenter below pointed out that 20 years ago this would not even be a discussion. That was obviously a problem back then. The pendulum has swung the other way. Perhaps if there were a middle ground things would be better for everyone.

You crossed a line if you decide that, even with new information, you are holding firm on the position of the line.