Phon.
put aside all of the boys advance, Maybelle already favor Phon from the beginning. she is pretty biased that believing that Phon did something rude or ugly is almost impossible
the phon she knew always gentle and polite , Maybelle believes all of his sayings, she will fulfill all of Phon's requests, except one : to not get hurt. Maybelle's worst injury is because she tried to protect Bellerophon
Maybelle also had a hard time to believe Rykell's frustration towards Phon because their view is different. Maybelle and her rainbow glasses and Rykell with adult view (For Maybelle, Phon is always works hard in everything. kinda like a role model. while Rykell gets annoyed for Phon's mental condition <he is female ver.of Leslie. all in his head is revenge>, but understands that it is also a difficult problem for the boy.)
Soooo, who's the ml soon? HSHHSHSHS i predict that the ml is phon