AITAH for feeling insecure?

My boyfriend (25M) and I (28F) have been together for about 4 months. From the start, things moved fast, we basically became inseparable after our first date. We’ve made a lot of future plans together, including budgeting, and we’re planning to move in together in January 2027 when my lease ends. He’s even talked about proposing this year. I genuinely feel like I’ve found my person. He knows about my past and the things I’ve been through. Last night, I logged into an old iCloud account I hadn’t used in years (I use Android now), and while we were going through old photos, we came across some explicit videos from a past situation, one of the man and one of me. I had completely forgotten they were even there since the account is around 4 years old. He got upset when he saw them, and I immediately deleted the entire iCloud account. We talked it through last night and I explained that I didn’t even know those were still saved, and we seemed to reach an understanding. But since then, he’s been acting kind of off, both last night and this morning. So… AITAH here?