Communications Director Nicolle Wallace will step down from her post at the White House so she can spend more time with her husband, White House Press Secretary Tony Snow announced Tuesday.

"I'm going to miss her. Nicolle is not only a terrific professional but also somebody who is just an absolutely wonderful colleague," Snow said.

Wallace has been separated geographically from husband Mark Wallace as a result of his becoming an alternative representative for the United States to the U.N. General Assembly in New York. He was confirmed by the Senate for the post in March.

"They thought that they would decide to live together as a married couple, so we wish them both the very best," Snow said.

Wallace frequently appeared on network and cable news, including FOX News, to explain and identify the administration's policy positions.

She moved to her current post when former communications director, Dan Bartlett, was promoted to the post as counselor for the president. Prior to that, Wallace served as assistant director for communications under Bartlett. She also was communications director for the Bush-Cheney '04 campaign and before that was a special assistant to the president and director of media affairs at the White House.

Wallace was also Florida Gov. Jeb Bush's press secretary and worked for the California Republican Party in 1998.

Her husband served as deputy campaign manager for the Bush-Cheney '04 team. The two got engaged on the day of Bush's second inauguration.

Wallace's impending departure was not unexpected by White House officials. Her last day is Friday. Snow said a replacement has not yet been named.

FOX News' Kelly Chernenkoff contributed to this report.