I just feel so stupid...

My friend's boyfriend was at a party last night, we're 21 in college.

And my friend's boyfriend was totally flirting with this girl all night. Fist bumping her, high fiving her tons, asking if she was okay like every minute (didn't ask his girlfriend). And then got a blanket and pillow for her while the girl's bf was getting food. He also told her he would make breakfast for her tomorrow morning. And my friend told me he doesn't even eat breakfast. And he ended up getting them breakfast from Mc Donalds. She's been a vegetarian for 10 years and he didn't even ask her if she wanted food, which is fine, but he picked a place where my friend couldn't eat.

So I talked to my friend's boyfriend about it and he just was like "Relax the fuck out, I was just being caring and nice."

And so my friends also talked to him about it and he finally understood. But it just pissed me off. My friend shouldn't be treated like that.

Has anyone seen this happen to a friend? I will always stick up for my friends.