Why is he leaving me on read and responding hours later?

Yes I know this sounds petty but it's really not I'm just always scared of being discarded

He's working a lot and really busy and he always texts me extremely long paragraphs everyday but I'm still scared because recently he's been leaving my messages on read for hours at a time and he responds at night. So it's probably because he's busy I'm guessing but still, why would he open my messages when he knows I too write very in depth stuff knowing he won't have time to respond immediately?

Don't come for me please I'm just always paranoid haha

Why is he leaving me on read and responding hours later?
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