May 25, 1989
Marilyn is born in Old Bullworth Vale to Thomas and Violette Yuen. Marilyn has no other siblings in her life, and she is raised by both nannies and her parents. Furthermore, Marilyn is introduced to other rich kids early on in her life, and she basically grows up with Bif, Derby and Pinky.
September 18, 1995
Marilyn is away from their parents for the first time in their life at Old Vale Preparatory School, and although at first they are a little nervous, they quickly adapt to their life at school. They do well in school, as their parents make sure they study hard so their family can look good.
2000
Two major events occur during this time of Marilyn's life. Firstly, Old Vale Preparatory School closes its doors, and all students are transferred to Bullworth Academy. Secondly, Marilyn is disillusioned from expectations of perfection and success from her parents, and she begins to find subtle ways to rebel. During this time, she also discovers she likes to play sports, and sports become an outlet for her.
June 18th, 2001
Marilyn's parents find out they are rebelling, and from that point onwards, Thomas and Violette start to treat Marilyn rather horribly. They'll humiliate them in public, say passive aggressive things, and will criticize them for any perceived wrongness. From their end, Marilyn begins to feel distant from the friends they've known basically since diapers.
2002-2003
From 2002-2003, Marilyn slowly realizes that she feels kind of distant from femininity, and having long hair feels like an extension of what her parents want. Partially out of anger, partially out of entrapment, and partially out of spite, Marilyn gives herself a haircut. For the first time in several years, Marilyn would feel freedom and completeness.
September 13, 2004
Against all odds, the person Marilyn would end up connecting with would be one Luis Luna. Their childhood friends disapproved of the interclass friendship, but by then, Marilyn wouldn't really care about their childhood friends thought. In fact, Luis would not only be Marilyn's workout partner, but also the one who got Marilyn into wrestling in the first place.
October 3, 2005
Having been training since summer, Marilyn gets onto the wrestling team due to there not being a female wrestling team, and her skill level being good enough to get her onto the team. During this time, she quickly forms a friendship with Dan Wilson, who had just defected from the nerds. She also quickly forms a feud with Juri Karasamov over his attitude and behavior.
2005-2006
Out of curiosity, Marilyn gets into nerd culture, and they find themselves enjoying it. Although they aren't ashamed of spending time with the nerds, they are very aware of how the jocks view nerd culture. They strike up a friendship with Melvin because they like his attitude overall, and they get hooked with G&G.
September, 2006
The events of Bully:Canis Canem Edit begin, with Jimmy getting dropped off at Bullworth by his mother and stepfather.