Feel disrespected by gf what should I do

My gf of 6 months added me to a gc with 7 her friends I’ve never met. It was all jokes and fun until some guy named Andre (apparently a mysogenist that no one likes) was talking about how woman who give it up easy shouldn’t be taken serious. This bought up an argument between my gf and andre and eventually Andre said “you had this dick in your mouth”. She responds with “what dick” and they go back n forth making sexual insulting jokes while I was reading the whole thing.

I texted her directly saying wtf that was about.

“Oh I forgot to tell you abt that.”

“About what”

“The thing”

“What thing”

“Him and I had a summer fling, we never had sex though”.

I will admit I got a little emotional and said “you fucked all of your friends or just the cute ones”. She tried playing the victim card as usual saying I was slutshamming after the only remark I made.

I didn’t feel like going on about it and just want space atm so I said-

“If it was some random guy then it’s my job to defend you. I have no reason to press him bc that’s YOUR friend that you’ve fucked. You tell him to not talk to you like that but instead you fuckin play along while I’m right there? On top of that you don’t even tell me. No woman of MINE does that to me that’s not acceptable. I’m pissed off I will talk to you when I do”.

I don’t think I’m being too emotional, I feel like this is a valid reason to feel upset. I feel disrespected. Supprisingly though, I feel a lot less angry then I thought I would be. I’m just enjoying a movie with my fam.

Anyways, I’m just wondering if I handled the situation well. What are your guys thoughts on the situation. What’s the next move? Should I always text the dude?