Kazutora wasn’t one to get sick easily but whenever he does get sick it’s probably over the dumbest thing ever. Tora had a Toman meeting and it started pouring, then he had to ride his bike back home in the rain which again got him sick and you as his ‘beloved significant other’ as he himself says that he should be your priority and had to keep care of him, or maybe he was just being clingy and wanted to get you sick as well.