Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: Basically I have a co-worker who turned to a friend(lets call him S). At the start we weren’t very close but we texted and went to parties/just hang out a lot.

I don’t want to make him uncomfortable with unwanted advances, since he’s straight and I’m bi so I’m not overly touchy.

He also has another close friend (lets call him J) who he hangs out with a lot and invites to hang out with us too.

My issue begins with this:
I basically only said a comment that was like ,,J you can really tell a difference from you working out... you look good man“ It wasn‘t even sexual, just a compliment.
Well it was at a party with J, S and me in the room and S reacted badly to me complimenting J. He started jokingly saying „wow you never  compliment me like that“. We all just brushed it off but he kept making remarks like that through completely unrelated conversations.

I wanted to go home early but J and S wanted to stay but in the end S decided to walk me home since he was „pretty tired“ anyway. 
We walked home and.... somewhere he started talking about what guys I find attractive. I told him that I have no specific check list just someone handsome.

Then (you guessed it) he asked me if I was attracted to him. I just  said “no dude” and tried to laugh it off. 

He started getting really mad, saying that he knows me way longer than J knows me and we are closer and he kept asking me if he was really ugly to me. I told him he’s not ugly but not for me and he responded with listing Js flaws and asking how I can think he’s attractive and not him. It was really dramatic and long story short: I ended up walking home alone.

Now I’m wondering if I should apologize or do something else...
Also, why did he react like that?

telling a friend that he's not attractive to me