She relies on tom far too much. she doesn’t take into account the possibility that he MIGHT NOT BE ABLE TO HELP her, in spite of his willingness to do so.
A <u>twist ending</u> is an unexpected way to end a story. It is when the author adds a last event which is completely different from what the reader was led to expect.
A <u>realization</u> is when the character(s) get(s) an insight that helps them understand something. The consequences on the character(s) and their life are often of a limited scope or short-lived.
An <u>epiphany</u> is stronger than a realization. It involves feeling, it's not merely factual. What the character(s) discover(s) or learn(s) enlightens them and permanently changes their life.