Does it say, your pokemon really2 trust you? if don't give that eevee some more. After that check again the happiness status. If it's say "it trust you", raise one level, eventually it will evolve depending on the scene.(day or night)
yes it says "it trust you" and i trained it up 2 lvls to lvl43 and it still wont evolve, is it because its the one of bill?