Need brutal honesty on this gym crush situation because my brain is spiraling?

A few years ago I matched this guy on Bumble, but I killed it by constantly talking about how his friend rejected me (awkward af). We unmatched and never spoke again.
Now, whenever I go to the gym he usually trains at (not my regular spot, I only show up occasionally), he looks at me nonstop. Like, full eye contact through crowds in the mirror, watching my sets the whole time. Zero smiles, always dead serious/intense face. When I catch him looking and hold eye contact, he immediately starts going extra hard on his lift — like one time he ramped up back rows big time, extra reps/weight
Last week was weird: only open machine was cable kickbacks right in front of where he was sitting at the front desk. My butt was basically in his line of sight (not on purpose), and he jumped up within seconds, grabbed the vacuum, and started cleaning the floor like he needed to busy himself and not stare lol.
Also, recently he’s brought a girl with him twice while working out (I don't know if girlfriend, friend, or what — he’s usually solo).
So… does this sound like lowkey lingering interest/crush (maybe shy or awkward from the old Bumble mess)? Or is he just uncomfortable/annoyed I’m showing up at “his” gym? Or creep staring? The no-smile + vacuum dodge + beast mode after eye contact has me confused. Be brutally honest pls
Need brutal honesty on this gym crush situation because my brain is spiraling?
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