Like I said for the first, initial release, it's a good setup. The problem (and one plaguing most stories, mainstream included, imo): There's no hook. You're building all this foundation, but you haven't given us a reason to care about the foundation, yet. Throw something spicy in there right away, and keep spicy stuff consistent. There's too much exposition without anything noteworthy or attention grabbing happening. Maybe add something to the yoga scene. My personal taste would be to do something with the outfit, like either make it expose more of her breasts and the MC can comment about how revealing it is, or maybe have her doing it fully exposed, but she hears him approach and he walks in on her hastily having fixed it (hinting at an exhibitionist kink, or maybe a secret watcher she puts a show on for in the mornings when he's usually asleep). Maybe have a phone call in the middle of the day where she's out of breath. Was she working out again? Was she masturbating? Was she cheating already? We don't know. Maybe she could send him a saucy selfie to encourage him to keep to his promise of getting home before 6.
There's a lot of things that could be added in, but right now, it's too dry. The potential is there, but don't take too long to hook us.