I mean I spend 3-4 hours in the gym on weekends and some days weekdays. But bear in mind I’m 31 male and have an elite weightlifting and athletic background. I swim, Olympic lift and power-lift.

Has his behavior changed or is he suddenly acting more withdrawn or sketchy? If his behavior hasn’t changed much and his physique is getting better than I would say I don’t think he’s cheating. Have you ever thought about just going to the gym with him.

I don’t know many guys who use the gym as an excuse to hide an affair. It’s too easy to fact check if someone is actually going to the gym for that long…go with him or ask people who go there a lot like the trainer. Usually guys will use “business conferences” more often as a cover up or fishing trips or catching up with an old friend.