When you want to describe someone leaving a location or situation, there are various synonyms you can use instead of "walked away from." For example, "departed" implies a more sudden or urgent exit, perhaps because of negative circumstances or a key decision being made. "Left" is a simple and straightforward option, while "abandoned" suggests a more deliberate act of desertion or giving up. "Retreated" or "withdrew" are alternative ways to describe someone leaving a confrontational situation or danger. Finally, "exited" or "vacated" are less emotive and could be used in more formal contexts, such as office or legal documents.