Hey I'm 14 and I'm really crushing on this girl in my R.e. Class, unfortunately, she's out with someone but they don't look like they are doing very well, so I want to know how to get this girl or how to help her out with her boyfriend

You don't try to take her away and you don't try to help her. Both things are likely to cause you problems if you attempt them.

Right now she's with someone so you need to respect that and let her do what she's going to do. If they ever break up, then you can try to be friends with her.

We are already friends and we flirt all the time but I just don't know what to do

Be there for her but, don't act like you really like her. Just be there for her. Be a nice guy, don't go telling her she hot or sexy. Girls like to be called beautiful. But don't over use that word.

OK how can she be out with someone while flirting with you ? She has got mixed emotions! But I think you should wait for the right moment when she's single and doesn't have a crush or something .