I'm in a predominantly male hobby group where most of the guys are great with one or two questionable individuals.
One such guy is very intense & made a sexist comment aimed at another woman on a WhatsApp chat last year. I called it out immediately which shut him up. Most of the time we get on fine but I'm not friends with him like other guys in the group who see women as equals.
The other night after class as we walked to get a train & I was caught up talking to someone else he said 'I said fuck you Celia, but you didn't hear me'. It was said with a smile on his face and I just said 'well I'm glad I missed it the first time then' with a what the hell look to a friend.
I get the feeling he might fancy me & also possibly be the incel type you find on Reddit. I don't think I reacted well to this comment - how should I react to any future comments from him firmly and decisively?