Yes, its like if you were an elementary student. You have discovered the mechanical pencil, what a glorious device it is, you buy a really nice one and bring it to school one-day to show it off. The kids all find it amazing, but one particular kid REALLY likes it. He even makes sure you know he likes it by saying "That is a really nice pencil, like reeeeaalllyyy nice" If your pencil were to go missing one day, your suspicion would immediately be that kid. This is relevant, trust me. Soo, since he commented on the song and then used it after that's what makes him seem like a their, even though technically it isn't your song, still that's what you use.