Melissa Etheridge's ex Tammy has taken to her blog to slam her baby mama for hooking up with new girlfriend, Nurse Jackie creator Linda Wallem, while the two were still together.

Tammy moved out of the LA home they shared in November 23rd, 2009, because "she said it would help, I was convinced it would." But Tammy says she didn't realize the separation was final until she heard Melissa's new album.

Tammy claims "I didn't know there was someone moving in as I was moving out." Melissa only recently stepped out with her new lady-love, but Tammy insists it's been going on for quite some time.

And to make matters worse, Etheridge's new girlfriend served as Tammy's best woman at her 2003 wedding to Melissa.

But Tammy says she's had some time to let it sink in. "I have had some time to let it digest, rip my stomach apart, digest some more, and I think I'm in a better spot now," she writes.