Why is dating so demoralizing?

Maybe I should just give up on men. I (35F) went on a date recently with a guy (38M) and it was one of the most fun I've ever had on a first date. It felt like we were both vibing and having a good time. He walked me to my car, said he had a lot of fun and wanted to see me again and we kissed. We planned the next date for a few days later and the night before he texted to say he wasn't feeling well and asked to reschedule. I was understanding, told him I hoped he felt better and said we can reschedule. It was five days of silence since then and I noticed today that he unmatched me on Hinge.

I guess this whole interaction made me feel confused and demoralized?

I know it was only one date but I would have preferred him rejecting me immediately if he wasn't feeling it, but he asked to see me again, asked to kiss me, texted me when he got home, checked in about my day regularly right before cancelling a date and completely going ghost?

Why is the dating scene just people who can't take accountability or just send a simple "hey, it's not you its me" text?