I don't have a problem with someone disliking any character. My problem is the way people express that dislike. I have no issue with the way you phrased it (that you find her behavior/personality off-putting). I only have issues when people start labeling a character as a 'Mary Sue' or a 'whore' or a 'boring waste of space'. These kind of negative comments only serve to encourage hatred for the character in question and increase whatever misogyny might already exist in the canon/fandom.