My sister's "boyfriend"

Yes, this is my sister's boyfriend haha She talks about him all the time and she makes me crazy because i have to heard everyday morning his music and before i go to sleep. His new album jus got out and my sister bougth 3 cds because she say if somethind happen to a 1 cd she can use the other one. Also she made me to buy one for her and her friend gave her another cd too. I think she have like 5 or 6 cds' and all the cd are the same. She love david Archuletta so much, she says what she can do with out him?? Also she says that there wiil be no future about him. I understand that he is his favorite artist and i have my favorite artist but i dont talk like she talk about him. she is obsesion about him and i dont know what do with her!!!