"I'm Not Him" is a song by Sam Grow that addresses insecurities and past hurts in a relationship. The lyrics suggest that the narrator understands why their partner may feel insecure due to previous heartbreak caused by someone else. The song emphasizes the importance of being present in the moment and letting go of past experiences. The song encourages intimacy and trust, with the narrator urging their partner to move in closer and assuring them that they believe every word they say. The line "Like I ain't never been lied to" indicates that the narrator is willing to give their partner the benefit of the doubt and believes in their honesty. The lyrics also express a desire to not let the opportunity for happiness pass by again. The narrator declares that they are not interested in dwelling on the past or worrying about what others might think. They emphasize that their partner is not the person who caused their previous pain, and they themselves are not like the person who hurt them. The song showcases a positive and optimistic outlook on love, urging the couple to embrace the present and enjoy the connection they share. It emphasizes the importance of building a new, healthy relationship and leaving behind the pain and insecurities of the past.