What happens after they have a fight and break up? Graelwyn tends to be pretty cruel and nasty when she is angry and if Flagg feels used and abused by her, then he can make such a complaint and so can his mother. She feels justified in what she is doing to a 16 year old child because she thinks that she is in "love" but she felt equally justified a few short months ago while she was stalking the object of her "affection" so if I were Flagg's mother and I knew this, I would be very concerned.
Of course she should be concerned. Just as a
mother would if their son was dating a girl his own
age. Look, the very things that you complain about
concerning Grael, are the same kind of issues that
a teen goes through. Some of us aren't emotionally
"grown ups" whatever the hell that's supposed to
mean. From what you wrote, I would conclude that
you think someone should only be with someone
MUCH more mature than they are, at first.