The Hashira all act like they hate you. They really don't. Some of them treat you badly, others don't. You were doing nothing, just sitting with the others. Of course, they one act like they hate you. But they don't mean the things they say....

Muichiro: You're useless... Rengoku: You're awful... Shinobu: You ruin everything... Tengen: We don't like you... Giyu: You should leave... Obanai: You suck... The Kamaboko squad are then soon to walk in. Tanjiro, Inosuke, Zenitsu and Nezuko. At least they treat you like a normal person