Ashley is Mel's older sister and their mom gives her a lot of attention and support. Ashley is rude to Mel but generally just ignores her because she feels like it's pointless o talk to Mel is she has no accomplishments which means to Ashley that she is not important to her or relevant. so they just end up ignoring each other Ashley is very smart and successful and tries to take Mel's spot in everything she tries to join and ends up doing amazing in it.