On men, from my VAST AND DEEP experience (Quit laughing!) I think...
(Now, what possible validity could anything that follows have??? But, I'm bound to say SOMETHING. Just call me opinionated, with no basis in fact...)
Consider a new man the same way you do a new (dog/cat/horse/etc.) whom you loved dearly, but has now passed on... Each is unique in their own right. Comparisons do not equate. Your life and experiences are different with each, and rewarding by having known each.
End that analogy. Human beings are far more complicated. Now examine the opposite sex from a "growth and development" perspective":
IF there is something there to make a relationship from, something sound to build togetherness on, as you look back, they seem to be stepping stones to where you are now. Had I tried to have my "men" out of order, I probably could not have handled it (as if I did such a stellar job in that department). But I mean SERIOUSLY in over my head... I needed each earlier one to be ready for the next. (Then, when it came time for the "keeper" to show up... big black void... I guess I can say it saved me from increasing the world's population needlessly. I'm just thankful that I live in a time period where a woman has that choice.)