OK I have 2 of the bestest friends in the world one likes anime and the other doesn't care for it... I love anime too and me and one of my best friends are working on this project and the other doesn't like it... and the one that doesn't like it is starting to not like me because I'm spending too much time with the one who likes anime HELP:eek:

This person who doesn't like you because of your new friend or interests is not acting like a true friend. Id sit down and tell her how much it is upsetting you.

Well she shouldn't just not like you anymore because you don't have that one interest in common, that you happen to share with someone else.
Unless you're making a point of being overly close with this other person and leaving her out? I can see that she would be upset if you two aren't really trying to include her anyway.

Try to make some time to spend with just her, talking about or doing something just the two of you are interested in, without the other girl. She would still feel appreciated then.