Ok, so... Last week there were some rumors about my friend being bi and I asked her because I wanted to know. She said no but on Monday this week she came up to me and started crying so I asked her why and she's all like " cause I'm bi, I lied to you last week." I don't remember much of what happened next but I do know I started to hug her and tell her it was OK. But my mind was somewhere else because I started to feel really weird around her like I don't want to give her the wrong idea by hugging her and stuff because me and my friends like to play around, hold hands, hug, blow kisses, FOR FUN, but I don't know if maybe she'll get the wrong idea! But I don't want to hurt her feelings either because she's a really good friend! What should I do?

Just treat her the way you've always treated her. It's pretty simple.

You can't catch "bi" like you can a cold or the flu, so like odinn said, continue to treat her as you have always treated her.

(I'm guessing you are maybe around 12 years old?)

I am upset on this, what type of friend are you ? A poor one, your friend was hurting and being honest to you. What do you do, worry about her, NOPE, worry about how it looks for you.

And guess what being "bi" or "lesbian" does not mean she will want every girl she knows, and she will want and need all of her friends.

So what if other narrow minded people make fun and jokes, are you as bad as they are ?
There is nothing wrong to be bi, but you make it sound like you think it is.