Everybody's body chemistry is different. I used to want to fuck anything that moved in my 20's, 30's, 40's, but now it's really slowed down. 53, I don't take anything other than vitamin D3, B12, and smoke almost every day. Interesting tho.. Paige had all her lady parts taken out about 3 years ago, and they still can't stabilize her testosterone. One month it's 10, next month it's hit as high as 3,655, although she could bench press 465 lbs (just kidding)... but it's been a battle to stabilize it. She smokes or does RSO every day, more than me anyways. I can tell when her T is gettin up there cuz she's horny as fuck. So.. I don't know how much science is behind this. It's an ongoing mystery... and for you guys going through this with your significant other, just be patient. It's not that they wanna start a fight or have a complete meltdown with a circular maze of logic... it's just the chemistry fluctuation in thier brains. Be compassionate, and try to let that shit fly over your head. It's not worth the fight.