Melissa and Tammy Etheridge have decided to split after almost nine years together, according to a CNN.com item.

In a statement, the Etheridges said, “We ask for consideration and respect for our family as we go through this difficult period.”

Melissa, 48, and Tammy (formerly known as Tammy Lynn Michaels), 35, were united in a ceremony in California in 2003.

Tammy had their children—son Miller and daughter Johnnie Rose—four years ago, after Melissa was diagnosed with breast cancer in 2004. Melissa also has two children with former partner Julie Cypher.