A couple days later, I texted him a causal I had a great time we should do it again and made a joke. He texted back around 12 hours later, apologizing because he was busy and said yes we should etc. I had posted casual outfits and fits on Instagram during the 12 hours, which he viewed. I texted him back saying yea whatever weekend blah blah and once again is taking a long time to reply, but is on and positing in social media. I know he’s at work a lot during the week, but I’m not sure if this is a red flag and he’s actually just not interested, trying not to come on strong, or it’s excusable given it’s the first week we reconnected again, and not like serious text messages. Should I assume he doesn’t like me and drop, bring this up to him, or directly ask if he’s genuinely interested in me?
Side note, had also posted me at dinner with one of my close guy friends (who he knows about), before I had texted him during the week. I never posted him on social media could it be that he’s upset about that? I don't know if overthinking this.