Amber Rose and Wiz Khalifa are over. Just a month after celebrating their one-year wedding anniversary, Amber has filed for divorce from her rapper husband.

In the divorce documents, obtained by TMZ, Amber, 30, says the couple split on Monday and cites irreconcilable differences.

She is asking for full legal and physical custody of their one-and-a-half-year-old son Sebastian. However, she’s willing to give Wiz, 27, visitation rights.

She acknowledges that there’s a prenup and is not challenging it. The prenup provides spousal support.

There have been rumors of infidelity over the past few days, and sources connected with the couple say the split is bitter.

Amber and Wiz wed in July 2013 and recently posted photos from their wedding reception on Instagram.

“I knew as soon as I met u, u were the one for me sweetheart,” said Amber, who has hired Nick Cannon as her manager. “Happy 1 year anniversary @mistercap and many more to come.”