Should I leave him on read or delivered?

I texted my crush. We both said we like each other. But he’s a horrible texter. It took him over a day to respond to my text. I’m kinda mad so I’m trying to decide whether I should leave him on read or delivered. But for the people who say I'm overreacting, I honestly want to know if it's reasonable to take that long.

PS he truly is bad at communicating but I mean everyone always has a phone on them right?
Leave him on read
Leave him on delivered
Text him back
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Should I leave him on read or delivered?
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