You and Tanjiro were the best of friends, you were always there for eachother no matter what happened, but lately, he hasn't been his self. He has been acting differently, Very different, every time you ask, "what's wrong" he just gives you a stare and walks away. You recently found out he was faking this whole time, he lied, he lied about everything, about his sadness, about his secrets, about YOU ...he lied... "....i really didn't want you to find out about this..." He sighed