In One Subclass of Immigrants, 100% of the Visas Reflect a Failure
With regard to "self-petitioning spouses", a group of about 4,000 legal immigrants a year, one of two unfortunate things has happened: either the alien spouse is lying about abuse by the citizen or green card spouse; or the alien spouse is telling the truth about being abused by the citizen or green card spouse. In both cases the alien is given a green card *because* of the failed marriage, an odd priority to say the least.
Source: cis.org