What if your boyfriend said someone else it’s pretty

I had a birthday gathering and my boyfriend said that my friend’s girlfriend it’s pretty and they talked the whole time and he even said joking do you want plátano (plantain 🍌) I got mad when I heard that. Then he served her food first and didn’t even notice I didn’t eat lunch. And he sat on the chair next to her later.

How would you feel ?

I’m upset because he was tooo friendly