how do I know if someone blocked me on Pinterest lol

okay so someone followed me on Pinterest and I followed them back, but just this morning I looked in my following and their account just wasn't there?? like it was gone. I looked at the pins they posted and they were still there, but their account wasn't on the bottom corner, it was just gone like wtf😭😭 I can still comment and like their pins, but I can't look at their profile bcuz it just disappeared, so IDK if they blocked me or if something else happened to their account. Pinterest experts plz tell me what happened 🗣️