Husband (37) began running a few months ago to get in better shape for a 5k he signed up for with co workers. He has done another 5k and a 10k and is now training for a half marathon in September. He’s already lost 40lbs and is in his ideal weight range for the first time in 10+ years. Our marriage has been on the rocks for over a year and we are in counseling.

The problem I (44F) have is that his “running partner” is a single 28 yo female. She’s a friend of the family that he “considers a sister” and I do know her fairly well. However… I am not okay with the amount of time they spend together. They run together at the gym in the mornings 2-3x a week and go for a long run on trails (up to 9 miles) every Saturday.

When he started hanging out for an hour or so after runs is when it became a problem. I now have panic attacks when he’s gone with her. I offered to start going with him and have a couple times (on a bicycle) and we have a fancy jogging stroller that he pushes our 2yo daughter in. He says it’s not the same motivation he needs because I’m not running. I told him that I would rather he do his Saturday runs with me or find a male to run with. We have 3 brothers that run but can’t go quite as fast as him so he says she is the “only one he can train with” and refuses to honor my request.

What do I do?