London: British singer Amy Winehouse's husband Blake Fielder-Civil, who is currently in London's Pentonville prison on assault and conspiracy charges, has again asked her for a divorce.

Thesun.co.uk quoted a friend as saying: "He is upset how close she has been getting to some of the men in her life. He thinks she's messing around. He's upset she never visits him and told her a few days ago he wants to end their marriage and she must visit him immediately to discuss it."

Winehouse spent a week in North London with some other male friends before emerging on Monday. She then proceeded to meet her husband in jail for an important talk.