Everyone in the guild starts to ignore Natsu as he's getting too annoying. Gray doesn't want to do it but is being forced by Erza to do so. They don't understand the pain they're making him go through, but does Gray...
Gray gets injuried while on a solo mission, so he has to stay home for one week in order to fully heal, according to Erza's strict orders.
All was good, until Natsu decided to take up the role of his caretaker, meaning that Gray, besides the fact that he has to hide these new feelings about the pink-haired mage, also has to put up with his constant nagging.
Well, isn't that just perfect.