To me it means, she is inlove with him, she is making her feel bad, she knows she needs to move on bad she can't forget all the things theywent trough together all the memories.
He is not spending time with her and she feels alone even tough she is with him, he is distance and that breaks her hearth. She doesn't care about what people say because she knows what they had was real but everything has changed and she wants to move on but she has the ilusion that if she give him a chance everything can go back to they way it used to be.