Original Commentary

Jealousy? Sofia hasn't had anybody she could count on - close friends, boyfriends, or the like - besides family. Sofia doesn't like Kimberly, but she believes that Brisbane is lost on his own - Terrence

Modern Commentary
That's "Sofia is potentially jealous that Brisbane had a steady relationship, was cohabitating, and seemed to be getting his life together".

Until a month ago, at least. - Terrence