I stopped looking too soon.
Here's the First Amended Complaint.... Check out the allegations at paragraphs 29-35 about the absence of verification.
Ugh.
The dates are about right and the amount is about right, so I'd say we have a winner.
ETA:
From Prosper's answer, which I'll upload if anyone cares:
Loans in a total amount of $25,000.00 were extended to the Plaintiff by individual bidders using Prosper’s website (“Lenders”) and the funds were disbursed to the Plaintiff by Prosper through direct deposit to the joint checking account of Defendant, Ashley Gaerke, and the Plaintiff. Prosper acted as the Plaintiff’s authorized agent to procure loans in the total amount of $25,000.00 from various Lenders on behalf of the Plaintiff. By way of further answer, it is denied that Prosper loaned any money directly to the Plaintiff or Defendant, Ashley Gaerke.
(bolding mine)
I can upload the answer if anyone cares.