I don't know if i'd call it subtext exactly, but they do move to America together in the anime and have sex in the bath together in the original game, so i'd call them shippable.
P'Mew is my favorite.. oh my...she's really hot..But Ice is so brave, I would never confess my love to a best friend... or to a girl at all. Even if I have to suffer...
@HopeFromYuri The papers are like strikes or warnings for breaking school rules. The school has hundreds of rules so it's pretty usual for the characters to end up breaking them.