Wow. That was a great idea, and has some neat insights.
When I stop to think about it, I seldom have 1a horniness. Occasionally, but fairly rare. 1b, usually between the 2-week and 1-month mark, with wonderful evenings scattered throughout time to prompt it. 1c is the most common motivation for my horniness - I read a book with a steamy scene, or see a sexy picture, and a switch flips, and suddenly I want to make love. With seeing my husband, it's usually a mix - sometimes I'll see his ass when he bends over, and that instantly spills over into horniness, but sometimes it's a happy glow - the thought "God, he's so beautiful, I'm so lucky" - that spreads into 2.
After the month-mark, when I actually give into my horniness and try to initiate, it's usually a mix of 3, 4, and 1b. As time goes on, 4 becomes more and more a morbid thing.
So it sounds like I need to work on the urges behind 3 and 4, Hm. Interesting.
I am turning in revolution
these are the scars that silence carved
on me