Am I asking for too much communication from my long-distance boyfriend?

I’m '21F' and my boyfriend is '21M'. We’ve been together for a 10 months and it’s a long-distance relationship. I love him very much and I genuinely believe he loves me too, but I’m becoming emotionally exhausted by our communication.

He doesn't like texting much. He prefers calls, but because of his schedule/life circumstances, we can't always call. When we do text, he can sometimes take many hours to reply, and sometimes we go 20+ hours without really talking.

There are also days when he doesn't send a good morning or goodnight.

I've told him several times that this makes me feel distant from him. I'm not asking him to text me all day or constantly be on his phone. What I want is some consistency—maybe a good morning, goodnight, a few details about his day, and some intentional time together. We're long-distance, so texting/calling is basically how we maintain our connection.

Recently we had a serious conversation about this. I told him that I feel like I'm always waiting for him and that I've become so anxious that I check my phone constantly even when I know he probably hasn't texted. He apologized and said he would try to text me more, answer more, and give me the time I deserve.

For a few days I noticed some effort, but then it went back to being inconsistent.

For example, one day he didn't text me for more than 24 hours. He had an exam, so I wasn't angry about him being busy—I was actually worried something had happened. He eventually told me he passed, but he didn't really explain the long silence.

Another day, after I stopped initiating, he texted me in the morning and again at night. But the following day he only initiated once and then didn't continue the conversation after I replied. This keeps making me wonder whether I'm expecting too much or whether we're simply incompatible in terms of communication needs.

My question is :What would you do in my situation?

I don't want people to just tell me “leave him” or “he doesn't love you.” I'm genuinely trying to understand whether my needs are reasonable, whether his behavior is reasonable, and whether there's a middle ground.