Frankie as The Chariot!
The Chariot symbolizes willpower and determination, which Frankie has plenty of since he has to deal with so many things as the co-owner of his family's restaurant.
The Chariot also symbolizes mastery and control, and Frankie has mastered his emotions for the most part. He keeps his secret desires (such as his desire for Sam, which he believes to be unrequited) and frustrations about his life under tight wraps, believing that living like this is easier not only for himself, but for everyone around him.
What happens when a series of events cause him to lose this control...? Find out (if this will happen) in "Sam in New York" (maybe 3 years from now, since this is very far into the story).