gay male: i’m gay
straight female: OMG UR GAY LET’S BE BFFS CAN WE GO SHOPPING TOGETHER OMG
gay female: i’m gay
straight female: EW GET AWAY FROM ME U DYKE DONT TOUCH ME GROSS LESBIAN GERMS

And let’s not forget –

Gay female: I’m gay
Straight male: OMG SO HOT. DAMN. CAN I FUCK YOU AND YOUR GIRLFRIEND WHILE SOMEONE FILMS IT. TOUCH HER BOOOBS. BOOOOOOOOBS.
Gay male: I’m gay
Straight male: HOLY SHIT IT’S A HOMO GET THE FUCK AWAY FROM ME FUCKIN HOMO. BACKS AGAINST THE WALL GUYS.