Mixed signals giving me FRUSTRATION

Yeah so I'm in uni and have two classes in common with this really cute guy (he's 24 I'm 20) and we're both single. He got out of a 3 year relationship almost a year ago I think.

Well when we're talking in person everything is perfect and chatty and we joke a lot (the classes are in the morning and he normally HATES mornings but he manages to laugh when I'm around)

So I'm all like "yeah he probs likes me!" And I fell HARD for him now

Here's the problem

Whenever I text him he takes like an entire DAY to reply. He will be online but won't read the message until hours have passed and I almost forget I ever texted him in the first place. I have plenty of examples.

What would you think? He got me pretty confused, unsure how I should continue with this cause he seems to be real serious bf material.