@ccat1901
He said he’s not looking for anyone and hasn’t been , although most on here think he is lying - it’s tough because he has always been honest before, even when he lost money on a gambling site (using his credit card or joint money)
But OP even if he wasn't looking right now, he's not saying he wants to live together as friends and not see other people ever in future.
He made it clear that he'll date in future, he says he won't date someone who isn't comfortable with this proposed set up. Not that he won't date.
And nobody in their right mind would date a man in his proposed set up, so he will meet someone he really likes he will change that set up aka move out.
Living with him now is just prolonging the agony and delaying the inevitable.
He doesn't want what you want. This will make you a shell of who you are and your children will witness it happening. They'll then replicate it as adults themselves. Which would break your heart all over again and make you feel guilty.
It isn't kind to offer someone crumbs instead of a clean break, it's selfish and cruel. It's easier because you don't have to be 'the bad guy' or lose the bits of the relationship you do want. That's what he's doing - basically cosplaying 'the good guy' while retaining the bits of the relationship he does like despite the fact it's clearly going to be hugely detrimental to your mental health.
You're going to go on a health kick, try to become the 'perfect' partner thinking that as long as he doesn't leave the home and you're still 'best friends' you can win him back. Does that feel like your natural inclination? I think it does.
He will let you do all that, put all that effort in, hold your hand, kiss your forehead... knowing he doesn't want what you desperately want from him. He's spectacularly cruel.