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Jealous that Amy's been hanging out with other men, her incarcerated hubby, Blake Fielder-Civil is threatening Wino with divorce!

According to the Daily Mail, Amy rushed to Blake's side yesterday afternoon, even though it seems their marriage is about to "implode"!

A friend claims that Blake's heavily influenced by his mother (who's frowned on Amy's behavior while Blake's in jail) and is "hot and cold" whenever Amy visit.

This marriage is on the rocks...but is that really a bad thing?