Keigo dose'nt want to admit, but he's a lovestuck for you. He would never admit to himself, even less outloud, that he loves you. That he thinks about you before going to sleep and you're the first thougth in his mind at morning.

"I just see them like a good co-worker, that's all."

He says as he talks with Mirko, but the way his eyes follow you like a mangnet as you pass by say otherwise.