He only texts at night?

I (21F) am talking to a guy (21M) that I’ve known for a minute. We’re both college students and we go to different universities (we’re 1hr 30min apart). He’s a nice guy and we do relationship like things (kissing, sex, etc) but he only texts me like once a day and it’s at night. He slips in a call here and there but otherwise we don’t really talk and things get a little lonely. I forget that I’m even talking to someone sometimes. Should I be worried about his lack of texting?
He only texts at night?
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