Should I ask my boyfriend, who's 24, why a female mutual friend of his has me blocked on Instagram?

I recently found out that a girl he follows—who also follows him back and is from the same city—has blocked me on Instagram, and I'm not sure who she is. This has me a bit concerned about his large number of female followers, primarily from his area. They aren’t influencers or anything, but still… Discovering this rubbed me the wrong way. I can’t think of a reason why someone from his circle, especially another girl I don't know, would block me. Ironically, when I first looked through his following list after we started dating, her account gave me an uneasy feeling, and I noted her username down—only hers, actually. I eventually forgot about it, but I recently stumbled upon that note and now this situation has come up. A bit of background: we're in a long-distance relationship that started in October 2024. He lives in Greece, and I live in Denmark. We met when I was on vacation, and I visited him again in January. I’ve only met a few of his friends, and only his close circle knows about me; his family is still unaware due to cultural and religious reasons. Currently, he's in the States visiting family and exploring potential job opportunities there. It all feels pretty overwhelming. Despite the distance and challenges, he generally makes me feel loved and valued. He certainly has flaws, as everyone does, but I’ve always trusted him and his words without fail. Should I just send him a screenshot of the “user not found” message and ask who she is and if he knows why she blocked me? We’ve already discussed boundaries, and I mentioned that I'm uncomfortable with him following every girl he meets or liking their posts, as it can give them the wrong impression. But since we're apart, I don't have many options aside from checking his social media. There’s so much more to our relationship than this… I really don’t want to come across as controlling or crazy. Usually, I wouldn’t even care, but I find myself overthinking things since I’m not fully in the loop. I just need some reassurance that there’s nothing suspicious about her blocking me and that he was unaware of it, as that’s honestly my assumption. Anything else would feel, well, unsettling.