Mischa, your cousin overreacted about the mooning elf. Mooning elves are FUNNY!!!
It's normal to go through periods of wanting zero contact with outsiders and isolating yourself, as long as it doesn't become a pattern. So last weekend you had a down/sad time... maket his weekend fun. Do something you've been putting off. Get your nails done! Go see a movie, friend, stay home and cook a new meal