Love?
Well, Zell doesn't really appear to be in love with anyone during the game. The pig-tailed girl in the library shows some interest in him, and at the end of the game she's sitting with him while he chows down on hotdogs (as seen by the above picture).

     However, Zell seems more interested in pigging out on the hotdogs than talking to the pigtailed girl, so I'm not sure if he is really interested in her!