If you like a girl but she says she doesn't like yet her actions say otherwise then it's probably best to play it cool and simply continue to be in her life but do not press the issue. Be her friend and be there for her when she needs you. She knows how you feel about her so maybe she simply needs some time. If you two are meant to be together she will come around and let you know. It is difficult though as many people do get these type of mixed signals.