Again, Ramon was taken back by Shiro's stunningly friendly personality. Especially after she a, laughed at his defeat, and b, threatened to break some kids hand for hitting on her mildly. Did she actually think he was cute, or was she going to use him? Ramon decided he would build a mental barrier between them. Not so much as to isolate her, but he wouldn't trust her fully. He didn't want another Cecelia on his hands. 
Ramon, unwittingly, went through their two year relationship being used for popularity, money, influence, whatever his girlfriend could get her hands on from him. And then she dumped him with nothing left to take. Then, she left him, practically for dead. She had no cares about what would happen to him or he would fare. However, Ramon had one secret that she didn't to get over something. Training. It had always helped clear his mind, and that's what he would do. Train.
However right now Shiro had asked him a question, one that he wasn't sure about either. There was no map in the orientation guide. Ramon said thanks to being called cute, and responded to Shiro's question with, 
"You know, I'm not entirely sure. It was never really specified. I'll go see if I can find a teacher, you guys can come if you want."