Instant connections and disconnection?

I met this guy on a certain app around Dec, we exchanged contacts and clicked instantly, like literally our conversations weren't awkward and calls, we could talk upto 2hrs. We went on a date and it felt like we were actually dating and had known each other for a while yet that was our first time meeting.

Fast forward, catching up on a daily, had 2 sleepovers at my place and his place (nothing sexual happened) just good vibes and inshallah, watching, cuddles then sleep...We rarely do instant replies since day 1 and I was used to that

Now days ago this man disappeared for 24hrs then called talking of he had a bad day and busy, but I'd seen him active on Instagram all through. I even called him during the day but he didn't pick up. I found it hard to believe him that for 24hrs he hadn't touched his phone, yet clearly he was active for quite sometime. I told him no worries I believe him lol even if I don't at all.

Since then, the dynamic changed, we barely talk and I'm just wondering if this is where I just move on with my life. FYI, it's been a month and half since we instantly connected and now we instantly disconnected. Is this normal? It's killing me but I can't do anything about it, I don't even want to address it first either unless he does lol.

Update: just checked, he even unfollowed me on Instagram. So yeah, I guess this was dead upon arrival. It hurts cause I thought we were real 😔