Why did he get offended?

Oh, so I was talking to this guy and later on like months later, he revealed that he doesn’t want to be in a real relationship right now, but he doesn’t mind the other stuff of a relationship which is a F buddy situation. So I made the comment will I’ll put you on the friends with benefits List since you’re only good for dick anyway. And he got offended and I don’t understand it.
Why did he get offended?
Updates
+1 y
Is just the same as a guy sending me a dick pic so you just wanna sex. And at this moment in time I don’t want that but I guess you could be safe or later if I get to that filling a moment or want.
Updates
+1 y
I’ve come to the conclusion that maybe it could’ve been said in a different way but at the same time I don’t think I’m wrong in the situation because if he’s only looking at me for just sex or a fuck buddy situation, then what I said is basically the same thing said out loud that he is only good for that for me because he doesn’t want anything else I have to put them in some type of category and I can’t put him down as oh I can take him to dinner or we can do things together no
Why did he get offended?
Post Opinion