AceShowbiz - A source close to Britney Spears has revealed that the singer is "extremely jealous" of her former friend Lindsay Lohan's recent career resurgence.

Lohan, 37, has made a successful comeback in recent years, starring in the Netflix film "Falling for Christmas" and the upcoming reality series "Lindsay Lohan's Beach Club". She is also happily married to Bader Shammas, 36, and recently welcomed her first child.

"Britney is extremely jealous of all the positive attention Lindsay is getting lately," the source told In Touch. "It's not that she has anything against Lindsay."

"Britney has just always related to her and felt like they were in a similar boat, so to see her suddenly be back in the good graces of everyone in Hollywood while Britney is struggling to get any real respect is a hard pill to swallow."

42-year-old Spears, on the other hand, has had a more turbulent time in recent years. She has been through a bitter divorce and has been struggling to maintain her mental health.

"Seeing Lindsay with this happy marriage and a new baby is very triggering for Britney," the source added. "She's been crying a lot about how unfair it is that her life is still stuck in a rut. She's angry at a lot of people and feels like her life has passed her by. She wants to be happy for Lindsay, but she's just seething with envy right now."