I'm engaged, and I love my fiance, but I am definitely lusting after my brother's best friend. I don't want to be with him, but i am so attracted to him. The sleeve of his shirt grazed my arm earlier and I felt myself shivering. I am not a cheater--never have been--so I have to keep this inside all the time, but I have to let it out somehow, so here I am. If he had a girlfriend, I think it would make it easier, but he's single, and it's driving me crazy! I've even masterbated to fantasies of him. I feel guilty about even thinking about it, but I can't help it. It takes some control to stop myself from getting too close to him. I'm hoping this is just a phase...