26yrs is this the end

[Queen_of_Swords]

Kevc, I am probably the last person that should give advice.
I will give you my opinion though, take it for what it's worth.
I have a WAS/MLC spouse too.
Today I decided I have to detach. Not contact him unless he contacts me first. Have no expectations of his behaviour. Listen respectfully and cheerfully to what he has to say,but keep my own mouth shut. Speak when spoken to.
Just observe and document any interesting changes and not attach much significane to things unless there is a pattern being revealed.
Not extend myself to him, and behave like we are in fact divorced.

I need to do this for my own emotional well being. It's too hard caring about someone that really doesn't care about you and in fact decided that the life you had together was a waste time and energy.

Your W and my H left for a reason. To get away from a situation or persons that were causing them pain and unhappiness as much as they believe that to be the truth.

Why inflict your unwanted attention on them?

Is this hard. Yes, better believe it.
Is the alternative easier, no it's worse IMO.
I am/ You're living for one moment to the next with your breath held wanting a positive response...any positive response. It usually doesn't happen or dissapoints you...or worse - lifts your spirits and then just as quickly dumps you into the pit of despair, doubt and misery all over again.

I believe you're doing ok with this approach.