Why did he suddenly block me?

kiki0101
During COVID, I was talking to a guy and we had cheeky and dirty conversations. He was wanting something casual and always asked for my nudes. I wanted a commitment and rejected sending nudes. Even after I rejected sending nudes we talked, but then I realized my feelings grew for him. So I told him I want to stop talking. He just said okay and it was the end. Since i had feelings for him, I did visit his fb to see his profile, i didn't click anything. Fast forward 6 months after we stopped talking, today i realized he blocked me. I am not sad or upset. I am confused and shocked. After i stopped talking i unfriended him and never texted him. If he was angry with me, why didn't he block me 6 months before, why now?
Why did he suddenly block me?
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