The lyrics of "Bad For Me" by Meghan Trainor (featuring Teddy Swims) explore a toxic relationship filled with broken promises, hurtful actions, and a one-sided dynamic. The singers express their struggles in dealing with someone who is selfish and unable to change, leading to feelings of frustration, hurt, and a realization that the love they share is ultimately detrimental to their well-being. Despite a familial bond, they recognize the need to break free from the toxic cycle to protect themselves from further pain and disappointment. The song conveys a sense of resignation and self-preservation in the face of a damaging relationship that cannot be salvaged.