With Platner, why did Democrats believe one woman but not the other?

When Jenny Racicot, a Maine Democrat, told Politico that Graham Platner sexually assaulted her, she was instantly believed, and as a result of her allegation, a cavalcade of Democrats who once strongly backed Platner are calling for him to drop out of the Maine Senate race.
Yet when Lyndsey Fifield, a Virginia conservative who has worked for right-leaning groups and Republican campaigns, told The New York Times in June that Platner regularly grabbed her, "sometimes hard enough to leave marks," and once "shoved her into a bedroom and held the door closed from the other side so she couldn't get out," there was no such outcry. Her allegations of physical abuse, which Platner denied, did not stop him from winning the Maine Senate primary on June 13.