"But, I Am Your Buddy" is a song by Heize that talks about the struggles and complexities of a relationship. The lyrics describe the speaker's anxieties and feelings of inadequacy when trying to communicate with their lover. They feel unsure of how to approach their partner, as they don't know what kind of facial expressions or tone of voice to use. The speaker also expresses regret for not being more honest with their partner in the past, causing them to feel constantly hurt. Despite this, the speaker still loves their partner deeply and wants to walk alongside them, even though they feel they don't fit in with their partner's grand lifestyle. In the end, the speaker accepts that they may never fully understand their partner, but they still want to be their companion and support them through their journey. The song conveys a message of the complexities of love and relationships, and the importance of being vulnerable and honest with your partner.