I think Minnie views Mickey more as a best friend, or a shopping partner. She knows what's going on


. I also always questioned Mickey's true sexuality. The high pitched voice... the suggestive glances he gives to Donald...that whole Mousercise stage he went through in the 80's. It has always set my gadar off.
I would like to note that I have no problem whichever way he swings. I am all for same sex marriage, and in his case interspecies marriage, if Donald is so inclined.