Is it normal to have silent phone calls every night with someone you've been talking to for a month? Or is this getting too comfortable too fast?

I've been talking to this guy for about a month. We're long distance, and lately we've been getting on the phone at night and basically just existing on the phone together until one or both of us falls asleep. Sometimes we talk more, but other nights there can be a LOT of silence.

At first I thought maybe it was just a sign that we're comfortable with each other, but now I'm starting to wonder because our texting has gotten pretty mundane too. It's a lot of "how was your day/weekend/Saturday/Sunday?" and then "good" "okay" etc. If I want to have a deeper or more interesting conversation, I feel like I'm usually the one asking the questions or bringing up the topic. He does ask me things, but it doesn't always feel like we're actively getting to know each other anymore.

There's also a situation with us potentially seeing each other that confused me.

He was going to be in my area because he has family here. I already have plans with my brother that weekend, and I knew he would have his child, so I wasn't pressuring him to come see me. HE was actually the one who originally brought up looking at Airbnbs and possibly seeing me.

But now that the weekend is approaching, he told me he'd "keep me updated" on whether he's coming. I asked him what that meant because I don't want to find out at the last minute that he's coming and suddenly be expected to make plans. He basically explained that he hasn't saved as much money as he wanted to, he'll have his kid, and since I'll be spending time with my family too, he isn't sure this would be the best time.

Those are reasonable things by themselves. What confused me is why bring up Airbnbs/seeing me in the first place and make it sound like you're planning toward something, only for it to become vague once the weekend actually gets close?

I'm not mad that he may not come. I'm more confused about the overall dynamic.

For people who have dated long distance or had a slower-building relationship: Are nightly silent calls/falling asleep together actually normal and a sign of comfort? Or combined with repetitive texting and vague plans, does this sound like we're settling into a routine without actually progressing?

I'm trying to figure out whether I'm overthinking a normal slow burn or whether I should pay attention to the fact that I'm starting to feel bored and like I'm doing more of the work to create actual conversation.