I cuddled him and stroked his hair and did it help! No! He turned his back on me and put his hands over his ears. He completely ignored me. Hasn't spoken a word since he got in.
You are mothering him.
I recognise this, I used to be in a relationship like this. I never did fix him. I wasted many years learning you can't fix people. In fact you are almost certainly part of the dynamic. He is treating you appallingly and you are giving him a free card to because he's "ill". You are giving him unconditional love, hoping more love will fix him. It won't. It's enabling him and screwing you up.
Having sex with him to make him feel better is likely damaging you.
He needs help, yes. But not from you, from professionals or friend's his not in a relationship with.
Look up co-dependency.
This really, really sucks. Yo are basically a nice person who's in out of your depth right now. You have learnt being nice to people and loving them is the way to fix things. It isn't working, so you've being more nice. Please recognise bending over even further backwards is going to make things worse rather than better.
It's unfortunate you have met someone who is taking advantage of your good nature. Your natural instincts to be understanding, in this situation, are damaging you.
You need to woman up, get some counselling for yourself, and take steps to leave this man.
You may not want to hear this now, but there is life after this relationship. There is a future in which you and your kids are happy, and it almost certainly doesn't include you and your DH together.
He is squashing you, stifling you, manipulating you and stripping you of your autonomy. His illness does not excuse this. It is unlikely he is to get better and suddenly start treating you with the resect and love you deserve. There is a need in him to reject your love, and you can't fix it with more love.
Please, start putting yourself and your children first and seeing this man for what he is. He is someone you were unlucky to end up tangled up with. He is not who you thought he was. He is damaging you and will continue to damage you until you pick up the courage to leave.
Please, try to tell someone in real life what is going on. I also hid my exes behaviour. But when I started telling people, it was like I broke a spell that keeping me quiet. It was OK, the world didn't end. It was a relief to bea ble to talk about it.