Yes, Felix and Pilar end up together. When Pilar breaks up with Felix, he gets closer to his ex-girlfriend Lake. Still, he soon realizes that he loves Pilar enough to not reunite with Lake. During the carnival, he apologizes to Pilar for not standing up for her when Armando interfered in their relationship.
When the Salazars move to Shady Creek from Texas, Felix feels like he is part of their family. His lonely life with his mother Dawn gets brighter when he finds a mom and dad in Armando and Isabel.
Although Felix tells her that she deserves a boyfriend who will stand up for her irrespective of what her parents want, Pilar feels his love for her. She drags him to the rest of her family as the Salazars take a family photograph, indicating her willingness to accept him back into her life and family.