What she means:
Peter Parker is a 15 year old boy who should be worrying about homework and homecoming but worries about keeping people safe and protecting his Aunt. HE IS JUST A CHILD WHO DESERVES SO MUCH AND NEEDS TO BE PROTECTED AT ALL COSTS. DID YOU SEE THAT RUBBLE SCENE? DID YOU SEE HOW MUCH THAT BROKE ME? DID YOU SEE HOW MUCH THAT BROKE PETER? I'M DONE™ AND AM GOING TO GO CRY IN A CORNER NOW.