I feel a bit stupid because there's no cheating, abuse, gambling etc.
We have 3 DC (12,10,9)
He has to do some sort of intensive exercise every day or he'll be in a terrible mood.
He organises his day around the activity he's planning on doing but doesn't mention his plans to me or the kids. It will be either mountain running or biking and it is usually for 2/3 hours plus shower time then he's tired but pretends not to be.
If I suggest taking the DC with him or going out later he becomes indignant. In his eyes he simply 'enjoys being outside' and it's me with the problem because I'm not being healthy and sporty and outdoorsy like he is (FWIW I do lead a healthy life and enjoy being outdoors).
He exercises secretly every day, he'll do hundreds of sit-ups in our dressing room but will pretend to be doing something else if I go in. I can hear him doing press ups in the bathroom.
Otherwise he's a great dad, and outside of his exercising time he does homework, plays with the kids and does housework. When he gets to do the activities that he wants he is a lovely person, but he has a problem that he won't face or admit to and I'm sick of his mind being elsewhere and his moods if he can't exercise.
We've been married for 15 years, this fanatical exercise started 5 years ago when he took up marathon running. I've just had enough of it now. He's not going to change and refuses to see any problem. The thought of telling the DC and our families that I'm breaking up our marriage because of an exercise problem seems absurd though and I don't know what to do for the best. Am I being absurd?