WASHINGTON — Inquiring minds have been dying to know: who was Elizabeth Warren rushing to meet when she left a House Oversight subcommittee hearing after a dispute with the chairman?

Warren, the de facto head of the Consumer Financial Protection Bureau, said she had struck an agreement with committee staff to leave after an hour of testimony — around 2:15 p.m. — at a May 24 hearing. Rep. Patrick McHenry, the subcommittee chairman, adamantly denied it, but ultimately let Warren leave the hearing.

"Congressman, you are causing problems," said Warren, who said she had to move around her schedule to accommodate a last-minute change in the hearing time. "The agreement was that I would be out of here at 2:15 because there are other things now scheduled at 2:30."

Newly released details of Warren's schedule show she had a 2:45 p.m. meeting at the Treasury Department with Mark Patterson, the Treasury chief of staff. She then had a meeting at 3:30 p.m. with Raj Date, the CFPB's associate director of research, markets, and regulation, at the CFPB's offices.

From 4 to 4:15 p.m. she prepared for a meeting with Neal Wolin, and from 4:15 p.m. to 5 p.m. she had phone calls scheduled with Rep. Barney Frank; Richard Davis, the president and chief executive of US Bancorp; Ken Chenault, the chairman and CEO of American Express; Fred Becker, the president and CEO of the National Association of Federal Credit Unions; Roger Beverage, the president of the Oklahoma Bankers Association; and CNBC's Jim Cramer.

At 5 p.m., she had an interview at the CFPB's offices with Suzanna Andrews of Vanity Fair.