Michelle Tyler said the mayor told her she was attractive and he wanted to take her on a date, the Los Angeles Times reported.
Tyler said the meeting took place in Filner's mayoral office and he made clear that helping the injured Marine was contingent on dating him.
"I felt that his rubbing my arm and telling me to relax ... was extremely inappropriate and unacceptable," she said.
Tyler attorney Gloria Allred said she was not filing a lawsuit on Tyler's behalf "at this time," but her client will be speaking to investigators from the San Diego Sheriff's Department and representatives of California Attorney General Kamala Harris.
The marine Tyler was seeking to help was suffering from post-traumatic stress disorder and traumatic brain injury.