Hello, I have no one to ask for advice. Please help me out.

I, during an argument with a guy, started talking about his gallery. He has intimate photos of his ex in his gallery, quite a few of them.

When I was talking about these photos my girlfriend was with us, after I said that, he stared me down👊 and said I can't be trusted with secrets.

Do you think it's okay for him to do that?

He's not going to delete these photos like he said. And he even mentions those photos sometimes in conversation and so does his ex. I think he still loves her! I'm 17, my boyfriend is 21.