I'm saying that's how it is. I think there are women that can successfully deal with a man's puppy. The interesting question is: even with such a woman is there a real downside to keeping one's puppy to himself?
Welp... personally... like you, I think both of those animals come out sparingly. A woman with endless needs... like your xW... is, to me, a woman with a weak bunny... and that weak bunny can bleed an R dry. Just like a weak puppy can. Or ANY weak animal, for that matter.
I also think, for the record, that it is harder to find a mate as one gets older, for we DO have past experiences that color our interactions with others... OTOH... we see the red flags almost immediately, instead of blissfully not even LOOKING for them, or ignoring them, probably out of ignorance... when we are young...
Is that a reason to be jaded? No.
But, to give Blackfoot his due... why would you ever settle for less than what you want? And until such time as you MAY find that... why NOT be a beer to slam, if you can handle it emotionally?
Just don't hold 'the puppy needs defending' up as the reason for distance. OTOH... it's a great way to get female attention.