She was waiting for Trump to give her a job. There is evidence that she was eagerly willing to help Trump's campaign and get paid for doing business with him. Then when he turned her down, she now comes up with this harassment story.
It's true she was on "The Apprentice" the year they filmed in Los Angeles instead of New York but she was also the first one fired because she wouldn't shut up in the boardroom when Trump was about to fire someone else. So Trump fired her instead.
Actually, it was Season 5, the series in NY before they moved to L.A. Here’s how Wkipedia descries Summer in the first episode:
https://en.wikipedia.org/wiki/The_Apprentice_(U.S._season_5)
“*Reasons for loss: Summer’s attitude was questionable, practically giving up during the task and making only one phone call while she was supposed to make as many as possible, claiming that she could not call the local businesses and restaurants during their dinner rush. She also demonstrated a lack of confidence in her team’s ability to win before the boardroom, even though they only lost by 3 memberships. Duffle bags were also misrepresented as gift bags, which had nothing inside them and were given away for free (instead of an exchange for a new membership), as declared by Tarek to Carolyn during the task.
*Sent to boardroom: Tarek, Summer, Lenny, Lee.
*Firing verdict: Trump noted how Lee and Lenny were laughing at Tarek’s bad decisions, especially the fact that he continued to defend the empty gift bags as being a good idea. He also couldn’t get Tarek to give any reasonable cause for Lee and Lenny to even be in the final boardroom, vindicating them. However, Summer suddenly interrupted Trump, which brought the attention back to her. Although Trump openly stated he was “ready to practically” fire Tarek, Summer continued her attempt to defend him, which caused Trump to lose his patience and, given Summer’s lack of judgement and little contributions in the task, he decided to fire Summer instead without any hesitation. Despite Tarek’s poor performance as project manager, it was deduced that Summer’s poor boardroom logic, unsatisfactory performance, and bad attitude made her the obvious choice to be fired.
*Fired: Summer Zervos – for having a terrible attitude, doing little to help her team throughout the task and for her interjections in the boardroom.”
That’s great! So it proves she held a grudge. Ha!