Big mistake? Gay help!

K so me and my friend Marie got talking and I blurted out I fancied her:/ she said she liked me too so we r together now. Literally and hour ortwo later I swear I regret telling her?! I regret telling her and I don't fancy her anymore! Omg wa is going on :/ help please!

What is going on is you're learning the meaning of the expression, "Think before you speak."

Relax. Get some space. Think. Figure out how you really, really, really feel before you say anything else. If you find that you truly do like her once your panic subsides, then you haven't made anything worse. If you find that you don't like her, you can't lead her on. You have to talk to her with the understanding that your impulsiveness could have damaged your friendship.