The answer, according to Evans, is that someone earned some major cash.
The Teen Mom 2 star, whose legal troubles seem to be mounting at every turn, exclusively tells E! News that Maggard sold the tape of their fight to the media for $45,000.
Who says there's such a thing as bad publicity again?
"She told me herself and I got very upset," Evans said Wednesday. "I cried for two hours."
Multiple attempts to reach Maggard for comment were unsuccessful, though she told TMZ that Evans not only shared in the cash windfall, but personally made the initial contact to sell the video—though according to her, the payment they received was just $5,000, not $45,000.
Meanwhile, Evans has been charged with misdemeanor assault and affray in connection with the attack, the footage of which was first posted by TMZ.
Maggard, who admits to picking a fight with Evans, was arrested also and charged with simple assault. The stunt came back to bite her again today, however, when she was busted today for alleged probation violation in connection with a separate assault case in 2010.
Evans' lawyer, in turn, is ready to argue that his client was set up if this case goes before a jury.
On the flip side, Evans' alleged victim, Truett, who's charged with simple affray, is gearing up to claim self-defense.
"I think we have a very solid self defense claim and we are continuing to investigate the matter," Truett's attorney, Adrian Iaplucci, tells E! News. "We are ready to take care of this as soon as possible."
Truett's court date is April 22. Evans is due back in court for this on April 26 (though she'll first appear on April 14 to answer to drug and breaking and entering charges, and then later on April 29 for yet more alleged infractions).
—Additional reporting by Claudia Rosenbaum
(Originally published March 30, 2011, at 10 p.m. PT)