Dating & cut me off after one night stand

I am completely heartbroken :(

I’ve been single for 3 years by choice, I’ve been in 2 serious relationships which ended in infidelity both times I recently reconnected with an old friend of mine & started going out to the bar/clubs with her I met a guy 2 months ago @ at a bar & made it clear since day 1 that I was not currently looking for relationships we’d talk here & there & would go on couple dates but nothing sexual till recently he expressed his feelings towards me but said he saw a lot of “red flags” in me, #1 being that I look like a “party girl” & that’s something he’s not looking for in a women.. #2 that I’m very attractive but very cocky with my looks? I’m a single mom of 2 so when I’m kid free I take advantage of it & dress up..

The talking phase was starting to get serious, we were texting everyday till last Friday when we decided to meet @ a hotel we did it for the first time & it was great the following day was his bday & I decided to surprise him with an expensive cologne we were texting fine the whole morning till night time & he went silent I didn’t think much of it since it was his bday I thought he was maybe with friends, I decided to go out that night with a couple friends & there he was with another woman, we made eye contact & he walked passed by me as if he didn’t know me 😢my heart sunk I didn’t text him for a couple days & he didn’t either till I finally reached out & asked what was wrong it has been 4 days & he hasn’t responded at all. I am completely devastated I want to express my feelings & block him completely out of my life, did i do something wrong