It seems odd that I have been with Kirsten for over a decade now... at least I don't look it quite yet. If I were to compare how I think with how I thought when I was younger... well, emotionally, I think better... I'm more emotionally mature and controlled, less depressed... stronger self esteem, etc. Mentally, I'm not always sure I have quite the degree of sharpness (or energy) that I used to have, but I certainly know more than I used to, which more than equals out so far. Eventually, entropy will catch up to all of us though... things fall apart.
The older I get, the more I feel that society has it all reversed... the older you get, the more societal encouragement we should give each other to do something arbitrary and relatively non-destructive, like dying your hair florescent plaid, or getting that septum piercing you've always wondered about... rites of passage. It would be good to be in a society where you can tell who all the elders were by their multiple tattoos, scars, piercings, etc. No one would ever be considered senile anymore... they would just be "channeling the spirits..."
As for a biological need to swoon, well... I still have that. I love Kirsten, but I don't have that new relationship energy swoon kinda thing with her... and I don't think I would like to imagine a life without that. She, thankfully, feels the same way regarding her interest in women. Life isn't supposed to be locked in a static state, and monogamy is essentially contrary to the way the human animal (and especially the human male) would naturally live. Still, Kirsten can give me the best or... well... let's just say she knows the topography of my physique. The cuddling isn't bad either.