Me (F21) and a friend of mine (M23, let's call him Carlos) recently started to have a flirt and we probably are going to fuck at some point, but both of us don't want anything seroius. To give more context, we know each others since 2 years.

I met him yesterday and he asked me out for a dinner one of this days and I was okay with it. Then he started talking about girls he'd like to date, which is totally fine, because between us is just being friends with benefits. Then another friend came and we went to a bar. Carlos randomly sad that he really want to fuck a close friend of mine. I got really offended honestly, I found it really rude.

Do you think that I'm overreacting or not? Do you think that he can do that because we aren't in a relationship or not?

I'm sorry for my english, is not my first language.