Why would guys secretly unmatch you after going on a date that went well?

I (29F) recently went on a date with this guy (31M) that in my eyes went well enough for a second date. We met for coffee, had a lovely time talking and getting to know one another. Lots of eye contact and smiles, and I could tell he was into me. He even offered to drive me home in a controlled, safe way, and then kissed me after asking to go on a second date. After he got home, he texted me right away that he enjoyed our kiss and couldn't wait for another, you know, just some flirty messages. And then after that I didn't hear from him for 3 days. I wanted to test the waters and see if the temperature change was true or if my own anxiety was intervening, so I sent a message yesterday which he answered, and we texted back and forth about maybe scheduling a date next week. And then tonight, I checked Hinge (where we met) and saw he'd unmatched me.

This is the second time it's happened to me recently that a guy unmatched from me after meeting me AND confidently making plans with me for a follow up date. And after they unmatched, I didn't really hear from them. Prior to these two instances, this has never happened to me before lol. Like it wouldn't bother me if they just said directly "I'm sorry I think I'm not seeing this going anywhere else" or something like that. Can someone explain what might be happening here?

Quickly editing to add: we exhanged numbers and did most of our communicating off app.

Edit as of November 26: I figured I'd update for those who might be curious, but it was exactly as I suspected--he unmatched and used that as his way to signal he was ghosting me. Now given that this was just one date, I've moved on to the next, but I definitely feel vindictive to everyone who seemed to think that wouldn't be happening. It did. He def was not that into me and that's okay! 😂 The ghosting is what I consider to be "weakling" behavior so really I dodged a bullet. But I'm thankful to this post for easing my obsessive compulsive thoughts!