I went out with an older guy and he blocked me right after and idk what to do

we were talking for weeks and he was always so nice and flirting with me and saying he wants to see me and be with me and idk what else and finally we actually go out and we spend literally the whole day together I was with him from like 11 in the morning until midnight and I really thought it was an amazing day I was so happy but I get home and go to msg him that I’m home and he blocked me on Snapchat, TikTok, ig, everything.

I literally don’t know what I did wrong he didn’t seem off he said he can’t wait to see me again I have no idea what happened or what to do.