SUBREDDIT: r/relationships
TITLE: I'm a (M17) who needs advice on what to do
POST: Alright so i'm in the most shitty position ever. Iv known this girl who we'll call anna for the time being for about 3 years. We occasionally would play online games together but iv never had a long conversation with her. One day out of the blue she asks me if i can keep a secret, i answer yes and she tells about how she has a crush on my best friend who iv known for about 5 years. Were practically brothers. From there we start to develop more of a relationship.

After that we sat on the bus to school every day together, Told jokes, laughed together and did normal things that friends would do. She opens up to me about social problems like being overly shy and having no self confidence and because of those things she doesn't have any friends. I told her that shes amazing and that there's nothing wrong with her.

After spending so much time with Anna i start to develop feelings for her. She has an amazing personality that ill probably never find in anyone else. She starts talking to the guy she likes, and discovers that he likes someone. We'll call him Andy. Andy is trying to get this girl and is set on her. Knowing this Anna still likes him. She always asks me to help her with Andy but there's nothing i can do. I want to tell her that i like her but i'm not sure if ill ruin our relationship. I asked my friend and he says the longer i wait the farther into the friendzone ill be. What should i do? (First reddit post btw)
TL;DR: 
Girl asks me for help with boy she likes, i end up liking her. Guy she likes is not interested in her but she doesn't care. I don't want to ruin our relationship by telling her.