That'd be PERFECT actually:D Not that it's not totally plausible that Wanda massively overreacted but... well, no, she still massively overreacted. Such is Wanda:D
I went and got the exact quote from when I originally brought it up because I don't think I can put it into words better than this:
"Also, just because being on this journal made me think about it, Anna Marie's been there her whole life (give or take a few months immediately after she was born) so she was probably this extremely obnoxious ten-ish year old when Pietro and Wanda got there. And has been giving Pietro an absurd amount of grief about his own self obsession for about ever now. She has probably changed her appearance to look like him and spent more time than is healthy doing some sort of "look at me, I'm Pietro, I do my little walk on the catwalk" routine. She's just delightful:)"
So depending on this Pietro's level of self obsession...? But, again, always open to tweaks:D