Fielder-Civil is currently serving a jail term for grievous bodily harm and perverting the course of justice.
His lawyer reportedly urged him to begin proceedings against Winehouse on the grounds of her alleged adultery.
The Daily Mail reports in its online editions that Fielder-Civil will ask for half of Winehouse's estimated $15 million fortune.
Meanwhile Winehouse has been talking about her relationship with Bowman saying she had "forgotten I'm even married" to Blake.
She went on to explain: "I've finally escaped from hell. I'm in love again and I don't need drugs. Look at me, I'm glowing."
What the El!?! Editorial:
Is anyone sad if this toxic couple is no more? I think not. Seems to me they get in trouble when they are together.
I guess she'll have to have that tattoo on her chest removed.
She's been looking a little more healthy. Now if she would just tone down that eyeliner!