Is he uninterested?

This dude's mom set us together. She asked me to text him first, which I did. He somewhat became started responding in bigger gaps of time-stamps. Once I ignored him for 7 hrs or so, he deleted my number. When I responded, he added me again over WhatsApp. We talk for a week. Everything's cool, and then he ghosts me. Been almost a week now, dunno what's up. I was being super responsive also, super friendly and transparent... and things might have taken an unexpected talkative turn on both ends. He's somewhat reserved and on the introverted side, but to be fair, he was also very friendly.
what do I do next?

Is he uninterested?
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