Rant: I have a crush on you?

I really hate it when people just assume that you have a crush on them and start to avoid you or even worst, start telling you off! I was walking with a friend one day and she suddenly told me that we can't be together because her parents wouldn't allow it and I'm like 'The fuck's wrong with you bro? I don't remember proposing to you!!'... Of course I didn't say it out loud it's all in my head but seriously? How can someone be so sure that you like them?!?! And the funniest thing is that the people who avoid/confront me because they think I am crushing on them usually have never crossed my mind as a romantic partner. Maybe they have a misconception that lesbians fall for every girl they see or whatever, but still, I don't know exactly how large a person's ego has to be for them to convince themselves that someone is madly in love with them. 

I'm just really grossed out by these people and if they fear that I would have a crush on them, they should rest assured because I never will. 

I wish these people can see how much of a joke they are.