Friends of Selena Gomez’s are concerned that she may want to  retrieve with Justin Bieber with music producer Zedd.

A source said: "Selena's friends surprised why she's so curious in what Justin is doing. They worry that she's again going back into her previous awful routine of checking over what Justin is doing and saying.”

Selena is checking everything regarding to the girls with Justin’s. She's is looks like to a detective. She can’t help herself to look at Justin’s.

However, insiders said that they are now friends "All he recognizes is that Selena looks like happy and enjoying her life. They are also working together for their upcoming album.