Friends concerned over pop princess as she goes gaga over split.

Lady Gaga is committing fully to her work routine after her split from her beau Mathew Williams.

A source told Now: "Matthew feels that he’ll always come second to her career. He’s very much in love with her and wanted to marry her. He’s begged her to slow down with work and take better care of herself, but she never listens.

Speaking about the recent split she said "My greatest sacrifice is love. I’ve only ever been in love once, and I had to walk away because I had to put my career first. He wanted me to stay at home and be with him; I wanted to be out there trying to make it on stage. It was a huge lesson for me, but it’s also a source of sadness."

Gaga has become renowned for her endurance during elaborate stage performances and long rehearsal schedules. She is insistent to fans that her music will always come first.