[If she's alarmed by that, it doesn't show in her facial expression. Instead, she's thoughtful.]

Maybe it's just that your drive and reason for fighting is different rather than absent. For me, I want to fight to protect people. I don't really care if I'm the strongest around, as long as I'm strong enough to do what I need to.

[And recent events plus nightmares of dangerous beings from home have reinforced that she is not at that level yet.]

Your reason for fighting might be protecting others, too. You stood up for your friend, so it's not like you have no drive to fight. Love is just as valid a reason to fight as hate.