maybe you did something wrong or she's just jealous
They may be upset with you
he's not worth trying to help when he ignores and lies to you
he is interested in you.
well anyone could answer that lolzzz he likes u!! or thinks ur cute (:
Their friend may have already liked you or is jealous
When you talk to her and she ignores you.
by how he stares at you
They like you a lot but they just can't admit it because they are afriad of the results...
when he talk about her alot or stares at her alot
A true friend wouldn't do that. The problem is, you don't have a true friend. Don't worry, it happened to me once.
Communication is the best solution, and I would suggest to play with your sincerity to find out and you might get it.
Sit down and talk to your friend, if he/she just ignores you, they aren't your friend at all.
Show my attitude ofcourse!! And try to make friendhip to her enemies