He won’t respond to me or give me my things back!!!!

My bf , or I guess ex bf 😔, is ignoring my texts and calls.

The last time I was at his apartment, which was a week ago, I left some jewelry and clothes there, because I was in a hurry to get ready for work.

We had a little argument about something and he ended up breaking up with me. I am so heart broken.

He knows I left my stuff there , and I’ve been asking him if I can come over and get my stuff.

Especially one ring that I bought myself. I wear it every single day and I paid a lot for it and I want it back now the other jewelry, he bought me, so if he doesn’t want me to have it, that’s fine, idc.

But I at least want my one ring I bought and my clothes back.

BUT HE WONT ANSWER ME !!!!

I text him and ask when I can. And I can see that he reads my texts and won’t respond to me. It’s making me so mad and crazy.

I don’t want to just show up at his apartment building because I don’t want to be that crazy ex gf. And what if he isn’t there ? Or what if he ignores me while I’m there and wont even come answer the door to me ?

This is insane. I’m already heartbroken and that fact that he won’t even reply to me is driving me crazy.

This seems like some high school drama and we are both in our mid-late 20s.

Any advice ??????

Edit: No I didn’t do anything horrible, like cheat on him or anything like that. We broke up because we have just been arguing a lot lately and not on the same page. He broke up with me and said he doesn’t feel like we are meant to be together. And then he just ghosted me basically and won’t respond to me. I can see he reads my texts tho. And I have tried calling him , and he won’t answer me.