I'll add my own data point into the mix. I'm 49, have been married for 22 years, with kids who are either grown up, or well on their way. Throughout my life though, I have been an absolute loner in spirit. I grew up quite isolated, in the UK countryside, and learned to amuse myself early on. My first love was computers, which luckily has served me fairly well, career-wise. I haven't had many girlfriends, and felt ver…
Sounds like you're just about to make a relatively large (perhaps dramatic?) change to your home and work life. Some people would call that a mid-life crisis but I think it's people realising the shortness of life and making sure they don't waste whatever they have left of it.
Hope whatever the outcome it's a net positive :)