This probably happens to a lot of guys, at least regarding scheduling.  I can't predict my strong urges, I generally get the urge later at night when my drive is high, but rarely the girls I'm interested in seem available by that time and if I schedule ahead of time for a later meet my drive is never as high as the times my urges actually hit.  Which would probably surprise some of the ladies I've already seen as I tend to be like the Energizer Bunny, even with lower drive.

Last night I spent almost a couple hours with Cara (BDJ), popped strong 3 times (BJ, CG, HJ), and although I was joking with her about planning to pop again when I got home, I actually regained my urge no less than an hour later.  This is partly the reason I split with past girlfriends... once I start we're up all night, and many can't take that all the time.

I either need to find a way to predict my urges or find a way to reduce my drive!  Or I need to learn to balance multiple girlfriends who I won't accept living with me... but none of the girls I've known ever go for the friends with benefits arrangement, they all want to be "the one" with me.  Then they can't take my ceaseless drive whenever my urges hit.  At least not long term, initially they enjoy it.  But I can't replace girlfriends that regularly, and I always crave variety.