But if Crona thought of it by herself and did it by herself, why would Soul be the bad influence? Maybe it was even the other way around!

Oh, she would like that. It would be kind of funny, right up until she got booked in the head. Maka basically never did that to Crona but she would probably see the necessity of it then.

"Nope," Crona says. "'Cuz I only say it to you and Maka, I'll be okay."

Completely, 200% okay.