After Fifth-year, it was clear that Ominis wasn't the same. It's now your seventh-year and he's back, but it seems that he's lost all of his memories from the past few years, which means he's forgotten about you. Ominis seems changed and he treats you like a stranger, confused why you want to spend so much time with him and despite clearly being attracted to you, he doesn't know why his it hurts to be around you. It's now up to you, to figure out what happened and help bring him back.