SINGLE MUM BUT HAPPY!

HASH POWER 7113// Acreditation: Zimbio.com

Jennifer Lopez is one tough cookie. Perhaps that's part of the reason why sources say she's not letting her recent split from Marc Anthony get the best of her. That, and she doesn't have time to be upset -- the woman's everywhere!

Insiders also say J.Lo is confident that the decision to divorce was the right one, so she's not torn up about the idea that they made a wrong decision to end their 7-year marriage.


"She is very relieved to be out of [the marriage], frankly," a source said (via People.com). "I don't think she is sitting around crying or wondering if she made the wrong decision."

Instead of being upset, she's back to work. The singer-turned-actress is focused on being a mom to her 3-year-old twins, and she's filming What to Expect When You're Expecting. "For her, it's back to business," the source says. "She is all about her career. She's excited to move on."