Fielder-Civil has been in jail since November awaiting trial on charges stemming from a pub brawl and alleged witness tampering. The trial, held at Snaresbrook Crown Court in London, began Monday.
Asked how her husband looked, Winehouse told PEOPLE: "He's gorgeous as f---. Haven't you seen him before?"
Dressed in a blue spotted shirtdress, cream platform peep-toe Christian Louboutin shoes and carrying a black quilted Chanel handbag, Winehouse arrived at court shortly after 2 p.m. She sat alone in the court's empty front row, blowing kisses and mouthing "I love you" to her husband, who was seated behind glass across the courtroom.
The singer, who performed a disappointing concert in Lisbon Friday night, appeared alternately dazed, bored, and outraged as pretrial arguments wore on. At one point, Fielder-Civil got the bailiff to have the court's usher fetch one of Fielder-Civil's lawyers in order to relay a message to his wife. After a whispered conversation with the lawyer, Winehouse rummaged in her handbag and held up a heart brooch bearing the word "Blake" in her husband's direction.
Winehouse continued a mouthed conversation with her husband until the usher stopped her. At about 4 p.m., she motioned to her husband that she'd had enough and was leaving.
"I love you, you're fit," she said, using the British slang for gorgeous as she stood up and exited the courtroom.