Been with DH for 35 years, (both in our mid 50s,) and I think if my DH died (or we just split up) I could never be with anyone else at all.
I would struggle to tolerate anyone else.. All the irritating quirks and habits that DH has, I could never tolerate in someone else. I guess over the years, me and DH have developed a bond and a love for each other, and this strong bond and respect for each other, makes up for the little annoying traits, so they are are just par for the course.
But I couldn't tolerate them in a new man.
I also don't think anyone could tolerate me. Nor would I want them to. I would not want to compromise with anyone, or not be able to be myself.
I know it sounds awful, but I also couldn't be arsed with anyone else's extended family. I really couldn't. Mine and DH's parents (and grandparents) passed some years ago, and I did all the caring for the parents and in-laws (when they were infirm) a few years ago. And it was bloody hard (with having 2 kids, and a job on top!)
I also would not want a man with kids coz I couldn't be arsed with looking after them/having kids living with me. (And if his kids were grown, I couldn't be arsed with his grandkids.) My kids (now in their 20s,) left home a few years ago and live not far from me with their boyfriends, and as much as I love them, (and would never change a thing if I could go back in time,) I would not want to do it all again!
90% of the time it's just me, or just me and DH, or me and DH with the kids and their boyfriends. And this is the way I want it and the way I like it. I have several friends who I see every few weeks for a coffee and a chat, or a pub lunch, but apart from that, I cannot be arsed with anyone. DH's brother and my brother both live overseas and we only see them and their wife and kids once a year for a week or so. And that is enough.
Also, I go to Church now and again, but am not fully committed to the Church. So I wouldn't want a committed Christian, but also not an atheist.
Me and DH have had separate bedrooms for 6-7 years, and I definitely would not want to share a bed with any new man, OR a bedroom, and I wouldn't want sex either. I just cannot be arsed with sex with a new man.. I can't see any man in a new relationship tolerating no sex.
Also, although I like to go out with my DH sometimes (for day trips and meals out etc,) I like to spend long spells on my own, and go for walks on my own, and like to read, in peace, for hours on end, and do my writing too, and go out taking photographs. My DH understands all this and respects it, and he has his hobbies too.
I cannot see another (new) man in my life putting up with all this, No shagging, separate bedrooms, me wanting to be left alone to do my own thing quite often, me doing some of my work from home and not wanting to be bothered, me not wanting anything to do with his family, (or kids, parents, and grandparents etc,) and me not wanting to be groped and touched, and me not wanting to hear about HIS hobbies and interests.
Sound like a miserable anti-social twat do I?
Probably because I am. Couldn't be arsed with any fucker... OR their habits and idiosyncrasies, their hobbies and interests, or their family and friends...
I would rather be alone with the cats, and see my kids once a week for a few hours, and my mates every 4 or 5 weeks for a coffee, than have to tolerate a new man, his irritating habits, his family, and him talking about himself and what HE likes. Whilst dominating the TV, expecting a shag when he fancies it, and expecting me to cook for him, do his washing and ironing, and do the household chores and shopping.
Nah....... Fuck that!