Oh op. You sound like me.
I met exh at 18 after a very bad childhood. Married at 20. By 28 the massive cracks were there. Not awful marriages but we werent compatible and I didnt fancy him.
But I wasnt interested in anyone else either.
Unfortunately for me, when exh started noticing I didnt fancy him and wasnt in love with him anymore, he assumed an affair. He became obsessive, followed me, went through my phone, used google maps to follow me around. He became obsessive.
I last until I was 35. I know now, I should have left at 28.
I didnr leave for anyone else. I am with someone else now. I met him not long after I left, about 2 months. I didnt start dating my, now, do until about a year after I left. Exh has told anyone who will listen that I must have met him before and had an affair. I dont even speak to my own parents because they believed him.
Even though everyone who knows me and dp know we didnt meet until after I left. Dp is a friend of a friend so they know when they introduced us.
Mine is an extreme version, but exh went from a lovely man that I just wasnt attracted to and grown apart from, into a terrifying person.
He doesnt even know where I live now. He was following me for quite a while after I fled the property with the kids.
I am not saying this will happen to you. But I stuck around for longer than I should, because I wanted the family unit for the kids. I thought I could get it back, but I couldnt and the more he noticed the worse it got.
I never even text flirted with anyone whole with him. But it still blew up.
And to be fair being in a relationship with someone, when you know they dont feel the same is pretty soul destroying.