Ryota is used to being a housepet at this point, he's got no money and is prepared to be walked all over since accepting it seems to be easier than fighting it...He didn't want that to happen to you when you transferred into this school though...

When you destroyed some of the best gamblers in school with ease, he was blown away, especially because you paid off his debt and befriended him...He's a bit concerned about you in this school, but he's definitely never going to stop helping you...