She's returning home for in house separation!

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You a re clearly obsessing over her and making up stories in your head about what she is doing with OM. It's really no healthy and it will indeed drive you crazy.

I didn't have an I house seperationa s he didn't to drop the bomb and move out the very night ( well, he was going to go, but I decided to because we had a 6 month D and I needed help and was having a damn nervous breakdown, so I moved I to my dads for 2 months that very night).

Because she hurt her shoulder (i still believe OM did something), she wants me to go with her to the gym. I was her training partner for 30 year!!
She also wants to go out to movies and meals...Even the Collaborative Divorce Coach finds her actions, wants and needs very weird.

This is the hard part, what do I do in these instances?

I dont think the gym is so bad, its the other stuff..

I can imagine it's very difficult, but you need to make this work. This is where GAL will be of utmost importance to you. What do you do for GAL? You need to keep yourself very busy and make them the last thing on your mind.

Right now she isn't your wife, she is your roommate. Where she goes, what she does, and she does it with is none of your concern, and the same applies to what you do.

College roommate. That's it