If he sends long texts late at night, does it mean anything?

Hautxtalons
This guy and I have been working together for about 2 months now and have been texting over break, no flirting really, just friendly stuff. I really like him though he's hard to read. He doesn't ever flirt, but he sends texts up to 10+ lines like paragraphs, talking about his day, being funny, asking questions. He usually sends these at 2-3 am too.
I know he could just be chatty, but he's not that way in person, more analytical really. It's just that most of my guy friends text stuff like "hey" or "what's up?" Instead of investing so much time into it. Is this how you guys text girls you like, with long texts? Or all of your girl friends too?
If he sends long texts late at night, does it mean anything?
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