Why does he copy me on snapchat?

This guy i’m sorta talking to snaps me back quickly & I’ll snap him back 2 hours or 4 hours later because i’m busy working or something & he’ll wait & do the same. Also with watching my story i’ll slide off on accident because i’m busy and he’ll do the same and not watch the next story. It’s kinda of funny a bit.
Why does he copy me on snapchat?
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