There are several synonyms for the phrase "walks away from" that can add variety and nuance to your writing. Some options include "departs," "leaves," "exits," "abandons," "moves on," "withdraws," "retreats," or "betrays." Each of these words suggests a slightly different connotation, such as leaving behind a person or situation, ending a relationship, or abandoning a specific goal or belief. By using a synonym that fits the context of your writing, you can create a more precise and evocative description of a character's actions or emotions.