How do I get a partner in the tag force tournament

You have to give them the Sandwiches they like, to buy sandwiches you have to go to the academy store and ask the person in front(not the counter)for a sandwich, each sandwich is 50 points. If you want to know if people like you, go to your dorm and right across from your bed, there is a computer press X, and pick Duelist list. There you will see the characters face and hearts next to their faces, the hearts represent how much they like you, if all the hearts are full, then they are your partner. Each character likes different types of sandwiches. Everyone likes the Golden egg sandwiches.

Bastion likes healthy sandwiches(Anything like tomatoes, lettuce etc.)
Alexis likes sweet sandwiches(Jam sandwich anything sweet)
Syrus likes Tofu and tangerine sandwiches.
Chumley likes Lobster sandwiches and Rice ball sandwiches.
Jaden eats everything.
Chazz likes expensive sandwiches(Caviar and Ruffle sandwiches.)
Zane likes the plain sandwiches( Plain sandwiches it looks like a pizza and the other sandwich that looks like a card I forgot the name of it.)

P.S. Every sandwich fills 1/4th of a heart, The golden egg sandwich fills a whole heart.