Not initiating calls anymore?

Met this guy on a serious religious app. He's in a different state. He got my phone number and immediately asked to talk on the phone. We had a good intro convo and he said he hates texting he would rather call. We talked about both looking for something serious. First few days he kept calling me or asking me to call him bc i dont always answer right away (busy). So i started just calling him whenever i was free and we would talk for hours and basically the whole day (sometimes we would just be on the phone quiet both just working but we have each other presence).

Then one day he said he'll call me back and he never did, he just ended up texting me something random never said anything about him not calling again. And then i noticed he stopped saying "good morning" or "sorry i fell asleep" like he always use to in the beginning. So i stopped calling him the past 2 days and he hasn't even initiated or asked to call me but we been texting a bit and bantering a bit, sent some instagram reels, a bit of flirting.

Is he waiting for me to call like always? Should i even call him if his effort kinda died down or should I wait for him?

Not initiating calls anymore?
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