Sakura will be so uncomfortable when people show him kindness or acceptance. He is just....not good at dealing with gratitude.He will try to avoid it. But being your friend,he can't escape from your kindness.The way you help Sakura's wounds and injuries,it give fuzzy feeling inside him and ofc he didn't like the feelings."I told you that I'm fine.It's not that bad" He huffed as he try to avoid make eye contact with you.