Victor's younger sister and best friend start seeing one another at the start of season three. While Felix (Anthony Turpel) wants to share their relationship news with the Salazars, who he considers his second family, Pilar (Isabella Ferreira) knows better and keeps her love life a secret until it eventually comes out. Pilar's dad, Armando (James Martinez), is overprotective of his daughter, and knowing that she's been sneaking around and dating behind their backs, he forbids her from pursuing a romance with Felix. Following a series of disagreements, a rift breaks out between Pilar and her father.
However, when Felix senses the hostility from Pilar's parents, he takes a step back, which doesn't sit well with Pilar, who wants someone who can fight for her. While Pilar makes up with her father after he calmly hears her side of the situation, she also breaks things off with Felix. Looking back at their relationship, Felix realizes his shortcomings and apologizes to Pilar for not being the guy who prioritized her over her family. While Pilar understands Felix's viewpoint, she grabs his hand and drags him into the frame for a family picture, silently telling him that he'd always be a part of their family no matter the situation between the exes.
At home, Felix's mother has gotten her depressive episodes under control, having finally accepted medical help. Though Felix is ecstatic to see his mom thriving, he constantly worries about her relapsing and slipping back into her old patterns, making him wary of Dawn's (Betsy Brandt) new boyfriend, Stuart. However, after meeting him, he can see he's been protective of his mom. Though the two eventually break up, Felix's mom handles the split rationally, and all his fears are put to rest. Knowing about Felix and Pilar's breakup, Dawn steps into her maternal role and plans a night in with her son, drinking his favorite root-beer float and devouring his comfort reality TV.
