I haven't read the whole thread so this may chime/clash with what's already been said.
Having had my heart broken in my mid 20's by someone I thought was it, I settled on someone who I thought "I can make it work, it'll be ok". This resulted in 12 mostly miserable years. I was 43 when I met the right one, the divorce was horrible, but 5 years later the ex and I are both happier now than when we were together.
I'm now married a second time and ridiculously happy.
I do sometimes start to resent my ex for the "wilderness years", but mostly I can't bring myself to regret the first marriage, it gave me a wonderful daughter, and led me where I am now. Who knows what my life would have been if I had taken another path?
The moral of this story: F***ed if I know, I'm just wittering on really.