What the hell is wrong with me?

I might crazy to you but I went texting an ex today!
I wrote something like hi WhatsApp I need to talk to a do you remember me ? XD
I thought he would never reply, I was waiting like come on say something…
I was out than came back, He blocked me! I swear he literally blocked me without saying a word can you believe !
Why the hell he did that? It’s not fair! :/