Okay, so he wasn't freaked out. That was a good sign. She really hoped this wouldn't come back to haunt her, but if he was Kid Flash then he was a good guy. So it was okay, right? She was pretty sure some other good guys knew about Clark so. This was going to be totally okay.
"Oh uh. Yeah, we're kind of related. And because technically I'm like an emancipated minor but I still check in with my.... Aunt and Uncle? They live like down the road. ...Is the Flash really that old?"
Yeah, this was weird. But okay. I mean, there was someone kind of like her who wasn't Clark and was actually her age. I mean he probably didn't come from space, but still.