I'm not sure if Sagara knows how to put how he feels for Kaname into words . . . while it is rather cliched, it's quite possible he doesn't know how to tell her. But then again, I could be wrong; all I've seen is the first 7 eps of season 1 and all of Fumoffu. But it is quite clear from the way how Sagara reacts in the theme park episode that he does have feelings for her. Otherwise, I don't think he'd react quite the way he did. And it's very obvious that Chidori likes him. She turned down the guy she went to the park with, especially after she saw Sagara (as Bonta-kun) running from the park security. I'm pretty sure Sagara loves her . . . he just needs to figure out how to tell her.
~ Kurama no Miko2003