... don't know what to call it...

So that's how it goes...
I am with her and happy...Having courage and strength to do do anything that it takes. We're both happy. We make new promises and strengthen old ones. The whole world seems like everything is wonderful...
Then, there comes a moment when I loose it all... my moment of loosing is when I'm driven by an energy that demands from me of pleasure and be physically engaged intimately. My partner isn't willing and I simply don't stop doing anything I'm engaged with...
I thought one should have it if it becomes a need that can't be avoided without a harm... But it is also causing me my love if I simply force...
I settle down thinking I never understand her point of view. This is a bad feeling. Can't I just listen to, and do as expected in the best interest of both of us... maybe I'm reaching there...