My boyfriend is writing a song about me..?

so my boyfriend is a professional musician and he's actually getting some recognition. His band is played on mtv shows like next, and he is sponsored by red bull, and on an independent label. He is writing a song about me and I kind of don't want him to, bc I don't really feel that connected with him anymore, and am considering ending the relationship in general. Should I be happy about him writing a song about me? He's awesome, it's just that he's a lot older (I'm 20 and he's 25) and if the music thing doesn't work he doesn't have a college degree. I'm just feeling weary about having a love song written about me.