Do not interact
I want to sit you down with some old photos of you, and say, "This man, I'm sexually attracted to this man. I want you to show me that you're still him." Because I am and am not sexually attracted to this one. This one I don't want to have sex with right now, because I can't imagine the man he has become truly having sex with me for love.
And I feel so angry and sad. And I feel so exhausted to think of walking him through this process of how to fix up his end of things. To keep being so helpful. I know mindreading isn't possible, but i wish he could just figure this stuff out on his own without me having to walk him him thru the steps to do so. Is that what a therapist does?
I dont feel like i have it in me to walk him thru what it would take for me to want to have sex with him. He needs... "I want to have sex with you, but i don't want to hate myself for it, but fairly, i don't want to leave you completely in the dark about what might work to help me feel good about having sex with you. You have to be back on your "top 20 best [partner title] in the world". Make yourself someone I would be happy to have sex with. No grand gestures of romance, just things that you think make for a great partner AND what I think makes for a great partner. I don't want to invest much energy into helping you figure out what being a great partner that i'd be proud to be with. I can invest a little now for questions, but after this i think i'll be too tired to give you a tutorial every day."