Why won’t he accept my follow request?

Anonymous
Real talk, does this seem suspicious..

I met a guy through work and we vibe really well. Definitely felt flirty vibes and got a vibe he was into me, and I was into him. He asked for my Instagram, I gave it to him, and once I got home I saw his profile is private so I followed him and immediately he accepted my request. This all happened on a day where I was running around doing errands so I didn’t even get a chance to glance at his profile. So later that night I finally do, only to see we BOTH aren’t following each other anymore.. I definitely didn’t unfollow him, and assume it’s a glitch. I figured instagram would fix itself, but it never did. I didn’t want to come off strong, and assumed he didn’t want to either so no one made a move to follow each other lol also I figured it would get brought up next time I see him.
Two weeks later, we see each other at work. Still same vibes of flirty banter…but none of us say anything. So I just go, whatever screw it, I’ll follow him back, it doesn’t seem weird…but it’s been two days and he hasn’t accepted the request. Which feels weird because he was so quick to accept the request the first time, and I guess I’m wondering, am I overthinking this? Or do you think he could be hiding something?
Why won’t he accept my follow request?
3 Opinion