There's lots of controversy swirling around the Melissa Etheridge and Tammy Lynn Michaels break up -- the latest involving money. Basically, Michaels' lawyer says her ex isn't giving her enough money to pay for their 3-year-old twins, while Etheridge says she's shelling out $2,000 a month, in addition to paying household bills, utilities and a car lease.

Etheridge's attorney tells, "Tammy is being completely supported by Melissa and has been since they separated. She's being well-provided for and then some, as are the children, which are Melissa's first priority." But Michaels' lawyer claims, "Melissa is paying various sundry expenses," adding that they're "destitute" and "It doesn't put money in her wallet. Literally she has no cash."

According to, a judge rejected Michaels' request to have Etheridge pay $25,000 to her and another $25,000 for legal fees.

Etheridge is seeking joint custody of their twins, while Tammy is seeking full custody. Etheridge's lawyer, Neal Hersh, tells E!, "Full custody with Tammy is not acceptable/ Melissa is going to petition for sharing of custody. I think the sharing of custody is the best way to do it." They're reportedly having a difficult time trying to coordinate visitation with the kids. Hersh says, "Melissa is on the road. She was supposed to see the children in Boston and Tammy didn't show up."

The couple split late last year after nearly nine years together.