If I may - who was he with immediately before you?
How did that relationship end?
What was the time gap between his ex & you?
I ask because if he was dumped & you got together on his rebound, it's entirely possible he never 'really' fancied you - you just represented everything his ex wasn't ... at the time
You filled his most empty bucket
Then add in something called 'loyalty' & you have a stand-up guy who has been / is a great dad etc etc but ...
has gotten to that time in life where he believes he's paid his dues as a grafter & a dad but now perhaps 'deserves' to be with someone he actually, err, fancies
"As a MAN - do I REALLY want to go to my grave celebate" - may well be the conversation in his head, once he has accepted that he simply doesn't fancy you, sexually, and never again will
As for GPs, counselling, therapy etc etc - forget it.
Sorry, no stranger can 'talk a man into' being sexually attracted to someone he is not. I mean, ask yourself, seriously - could a stranger talk YOU into being sexually attracted to someone you simply are not?
Non madame.
There are many things counselling can fix. I should know. I am on the alumini of a real bricks & mortar counselling & therapy centre & I see miracles happen every day ... but not this
Talking therapy is amazing, but it cant make you fancy someone you simply do not
This thread topic header closes with - "Does this ever end well?"
It CAN if the woman accepts that his need to desire does not counterpoint his love for you
There are countless legions of CEO's & captains of industry who 'take the secretary away' while the wife does lunch and does the tennis coach.
But you cannot make him fancy you, and neither can anyone else
So look around at everything you have (as opposed to everything you have not) and YOU decide if you want to turn that cart over, end it all, split up & start all over again 'out there' ... or ...
Let him go get laid
Pound to a pinch of shit, once its out of his system, guilt will bring him 'home'