Demi Lovato...... Why did she change?

Demi Lovato realized her brand new album last month......I've trying to figure out What happened with her rock-pop style?. She used to be my favorite singer because of one reason: She was one of a few artist who make rock-pop music the rest are focused in selling thousand os cd's and itunes downloads in order to be nominated to "best pop song" in Mtv awards with Lady GaGa. WTF?
At the beginnin i listened to "Skyscraper" and i said OMG what a good song the rest of the Cd must be awesome and then i started to listen to the rest of the album and what a surprise......what a disapointment.......is she trying to be Selena Gomez????
What happened to the guitar solos and the loud notes in her songs??? Demi you've been in rehab but seem's like they made you listen to all the electronic summer hits while you were there.
Why?
The tittle of her album is "Unbroken" i thought that the song with the same name would be about how you don't have to let the bad things in your life tear you down but she made an electronic pop love song with the typical lyrics that will obviously be popular.

My point is that i don't like when an artist with so much talent and with her amazing voice change her style only to be popular in a brainwashed public wich buy whatever pop industry says it's ok.
I miss the old Demi with her rock-pop song that had a real meaning and good lyrics.