Arguements, Acts, Flirtings...When will it stop..?

I have a friend. Let's call my friend "A".

I owe "A" a lot. Why? Because she was right beside me when i needed help. At one time, all my friends bailed out on me, except her. She was a shoulder for me to cry on, the pillar of my overweight roof. She helped me out a lot. She's my best friend. I've knew her since we were little.

I have another friend. Let's call my other friend "B".

Well, "B" isn't much of a good friend to me. As I said, ALL friends bailed out on me (except "A"), and "B" was one of them. She back-stabbed me. Well, not only me she back-stabbed. She back-stabbed a lot of friends, "A" was one of them. "B" has an annoying attitude. "B" complains about everything and frustrate about things that doesn't have to be frustrated. "B" keeps saying that nobody pays attention to her. I always act quietly when "B" says that, but in my heart, I'm shouting :"WHAT ABOUT ME? I WAS THE LAST ONE TO GET ALL INFORMATION!!" But anyways, "B" is still my friend, just not that good a friend.

Lately, "B" hates "A" a lot. "B" says that "A" is just trying to get boys' attention. To me, "B" expects me to side her. "B" always complain about "A", which makes me dislike "B" more and more. "B" is acting very very strange, just to get a few boys' attention. "B" is somewhat a hypocrite.

What I hate most about "B" is, that when she's not happy about you, she'll say it out in front of my friends. She'll make it sound like she's kind and doing nothing wrong, but the meaning she's saying is insulting me in the most embarrassing way.

"A" plays with boys all the time, since the day we've met. When she does, she looks natural, just like kids. But when "B" plays with boys, it looks really fraud. I dunno, when "B" plays with boys, the way she smile and laugh was a bit fraud, like she's flirting with boys. And the way "B" hits them, she smiles so happily and looks at the person she had a crush on, like, hoping the guy will get jealous.

"B" has changed a lot this year. She's like, faking depression in front of "some people"....

But then..she's my friend..I'll have to accept the way she is, not disappointing both of them...

Hope we will be friends till the end, A and B...