Can my own husband sue me in California for $10,000

My husband, clearly soon to be ex husband, sewed me for $10,000 and actually won the judgement in Mendocino County California. I was the Trustee of my grandparents estate and during escrow my husband turned a note to the title company stating that I wanted to pay him $10,000 out of escrow for monies owed to him. The note was forged and the title company was very aware of that, which led me to include a note in my file at the title company stating that his note was forged and NOT to pay him out of escrow. I reside in Washington and barely even was properly informed that after 2 trial dates the court just ended up giving him the judgement I am not to sure, but I would imagine that he did not tell the court that I was his wife. Does that make any difference? Thank you so very much.