Mary Jane Watson is a terrible person throughout Sam Raimi's trilogy
https://www.reddit.com/r/movies/comments/i27jeb/mary_jane_watson_is_a_terrible_person/
She dates Flash, who’s a dick.
She lies to Peter about her “audition” in the city.
When Peter tries to talk to her about his issues, she brushed him off and tells him he needs to do better. When she has issues, he listens and offers sound advice based on experience.
She doesn’t wait for him like she said she would, getting engaged shortly after she said she would.
She’s in love with Spider-man but engaged to another man.
She’s really needy and in constant need of reinforcement from those around her.