i have found that my bf not being in the mood has happened several more times than me not being in the mood. i used to think that i didnt want sex at all, but i guess it was just the guy i was with. now that im with someone i feel is right for me, i want it all the time! i think his problem now is that he has SAD but doesnt want to admit it. once the daylight cut short he started sleeping constantly and had no enthusiasm for anything (including sex) so hopefully once it starts to clear up well be back in business lol.