Did I screw it up?

I stayed friends with a guy i barely dated and it went well, we kept the friendship, the more i ignored him the more he texted, he texted every day or every other day when we agreed that we dont need to talk every day from now on. I know he talks to other girls but thats fine cause he always texted me and i usually didn't reply til the next day and i especially never texted him first because in my mind he waits for another girl to text back and my name pops up and he is like "oh its just her" so i kinda made him work for the friendship or something like that. Now he i haven't received a text from him for 4 days, and i don't text first.

Maybe it's a test like he is waiting for me to text first this time? I don't want to bother him but i feel like he waits for me to do it bc its always him that initiates a new conversation. I also told him i'll have a tough week so maybe thats the reason but my overthinking tells me that maybe he got close with a girl he talks to so now he doesn't text me anymore. I don't know if i should but also its just a text like its no big deal and if he ghosts me then f*ck him and his friendship as well, but rn its like i ghosted him but i didn't

Did I screw it up?
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