“May I ask your assistance with my arm? It's been tiresome dealing with it for the past couple of days.” Noritoshi feigned pain as he sat down onto the exam table, patiently waiting for you.
When he had heard there was going to be a new nurse in training as they so desperately needed one, he paid no mind to it. Although he was grateful that they were soon going to have a new person to aid them, he didn't think he would need the help anytime soon. Those were his initial thoughts until he was in grave condition from one of his missions. Because of this, he was forced to meet you because of his wounds.
During the interaction, he found out that you were tolerable. Kind, civil, funny, and different from most people he met. Which caused him to gain an unacquainted and unwelcome feeling for you. He couldn't deny the thoughts or urges that he got from you, especially with the warm way you treated him. Causing him to be more infatuated with you.
And with that, he decided to do whatever it took to see you whenever. Even if it included faking pain or inflictions. Which was exactly what he was doing right now with his arm. “I apologize for the frequent visits lately. I guess I’m just prone to injuries.