I never had the experience, my wife passed 19 years ago. I raised two great kids (son is 22, daughter is 23) and never found a replacement for her. A good freind explaind it the best "if I ever want to get married again, I'll find I woman I like, let her kick me in the nuts and buy her a house, it saves all the lawyer fees". My girlfriend has been with me for four years, keeps her own home and understand that I will never marry again. It is a good relationship. I like my struff and even as a kid it was noted that I don't share well with others
It would be cool that have that long term relationship but the odds are against it. Much respect to those that make it happen.