She's suing the state. Here's the Tri-City Herald with details:

A florist facing lawsuits from the Washington attorney general and the American Civil Liberties Union for refusing to provide flowers for a same-sex wedding has filed her own lawsuit against the state for violating her religious beliefs.

Attorneys for Alliance Defending Freedom, a legal ministry that advocates for people's religious rights, filed the suit against the state in Benton County Superior Court on Thursday on behalf of Barronelle Stutzman of Arlene's Flowers. It argues state Attorney General Bob Ferguson's suit is attempting to force Stutzman to act contrary to her religious convictions in violation of her constitutional freedoms.

(Here's another article on the lawsuit... warning: Grab your red pencils.)

UPDATE: The countersuit is posted here. It makes many of the same arguments her attorneys made last month, which I reported here.