At the end of the day you people are idiots for thinking this is some flaw with MJ's character and not something mandated by editorial and/or shipperfag writers. There is no "secret endgame" for Peter that hasn't been done yet, MJ is it, but the comics don't want him at his endgame so they make her act like a cunt to try and get people to stop liking her, then they ship her off to other books.