The English language has a lot of quirks where the pronunciation doesn't match the spelling or two words are pronounced the same but are spelled differently. This disparity has been enforced by the school system and media publishing gatekeepers for a long time but now that anybody can publish anything on the net a more loose way of spelling is proliferating. It will probably just get worse over the next few decades.
My favourite is guessing whether there is an s or c in some words, sometimes it feels completely arbitrary. I cannot count how many times I've misspelled 'choice' (actually misspelled it just now but the spell checker caught it).