Morgan grew up in a wealthy household, with loving parents, and a sister whom she really doesn't appreciate. Free spirited, she is part of one of the most infamous club in Windenburg, the Renegades, therefore making her one of the most feared Sims in the city. However, being a Renegade puts her in constant war with their rival group, the Paragons, which for her means constant war with her sister, who's part of the most popular club in town, that she despises. The fact that Morgan is in the Renegades contradicts her personality since she has the Good trait, which suggests that she is only in the club due to her rivalry with her sister.
There appears to be some romantic attention between Morgan and Paolo Rocca in The Sims 4 Get Together announcement trailer since she confidently approaches him at a party and is later shown kissing him. However, this did not translate to the final game since Morgan doesn't even know Paolo and she is too young to have a romantic relationship with non-teen sims.