Most Helpful Girl
Most Helpful Guy
Only way (don't want to get your hopes up) is to somehow be attractive to her again.
Being dramatic or telling her how much you miss her isn't going to do that.
Asking for forgiveness probably isn't going to do that and might just remind her of what made her no longer attracted to you.
Reaching out to her every single chance you get when she isn't responding so warmly probably won't do that, since you never give her a chance to miss you and might feed on her feelings to shut you out.
Being fun and awesome and cool might do it. Looking more emotionally mature than you ever before might do it.