Why does Ivy think Lily did her so wrong?

Like Ivy is so delusional!!! She lied to be in the family for money and manipulated everyone. They all cared for her mentally and financially as well as loved her. Then she came back again and left to take care of Lille's mom. Of course, they would feel betrayed and played and mad as well as not want her to let her have any of the money. Like girl she didn’t take anything from you, you didn’t have anything to begin with!