He’s mad at me

Matty

My boyfriend and I were walking to class together, and he grabbed my backpack and was carrying it for me to class. I know this sounds rude or wrong or whatever but I really really really didn’t like this. I wanted him to give it back and I told him that several times. I made it loud and clear that i wanted my bag. I don’t know why I reacted like this but I really wanted it back.

He didn’t give it back until we were almost at class, at which point I was definitely having a panic attack. I was not happy with him at all because I told him straight up, “please give me my bag I’m serious” and he didn’t. Idk why I was panicking. But basically that panic didn’t go away I was hyperventilating and absolutely freaking out during our entire class period and so after class I didn’t want him to see me like that so I just left. I’m actually still at school I’m just sitting alone.

Now he’s mad at me because I left and didn’t “give him a chance to try and help me calm down”. Idk what to say.

Is he right to be mad?

Edit: there’s also nothing in there that I need to hide. He’s seen everything in my bag before so it’s not like I had something to keep from him