The phrase "play cat and mouse" is used to describe an interaction between two individuals where one person is teasing or pursuing the other person. The phrase has a negative connotation and can be seen as manipulative or even abusive in certain situations. Some possible antonyms for "play cat and mouse" might include "collaborate," "cooperate," "support," "encourage," "empathize," and "communicate openly and honestly." These words suggest a more positive and respectful way of interacting with others, emphasizing teamwork and mutual understanding rather than power plays and one-upmanship. Ultimately, the best way to build healthy relationships is to treat others with kindness, respect, and fairness, rather than using them as pawns in a game.