Valentine almost fell to the ground. He steadied himself on the nearby wall and said, "Sorry." He walked past Keio and continued home.
(wait I'm confused do they know each other O-O the first one if for if they know each other the second if for if they don't know each other . . .)
Valentine's eyes widened. "Don't try it Keio" He angrily walked faster to his home. He almost fell on his face doing so.
Valentine stared at Keio for a minute. He turned around and continued walking home.