[He's already been here longer than he would like and it hasn't been that long. Still, demigods never do well being trapped and while he ponders on an escape plan he finds himself filled with a bunch of pent-up energy.
As it turns out, the best way to use that energy is to run laps around a track. On occasion he'll sprint, leap over invisible targets and change his direction entirely. Overall it probably looks a little strange and more like he's running from something. But that doesn't matter. It keeps him busy for about an hour and a half before he finds that he's a little worn out. Constantly being on the move like that isn't something he's used to anymore.
The other thing he finds is that he's kind of gross and sweaty now which really doesn't help the situation. He sighs to himself, running a hand through his hair before disappearing from the gym all together. He's not aware of anyone who might be watching and maybe he doesn't even care. Instead, he heads back to his apartment for a change of clothes before ducking into the bathroom.
The bathroom at this hour seems blissfully empty, so he doesn't bother hurrying through anything. Why? They have all the time in the world here, it seems, and he's out of his sweat-drenched clothes shortly after before wrapping a towel around his waist to grab soap/shampoo/etc.
The broken shower door gets his attention though and he's eyeing it curiously, fingering at the hinges before laughing to himself. This is what he finds himself doing when he suddenly hears footsteps behind him and he turns his head a fraction. Upon seeing who it is though, he only gives a tiny smirk in response.]
You know…we should probably stop meeting like this.