What makes this person annoying? another motheR-inlaw-is-crazy story?

She keeps on following me just to tell me stories and gossips whenever i am in the house, even if i am not in the mood. she is talking to you just to prove that she is “smart”. she will suddenly creep inside my daughter's room and pretend that she will ask something but the truth is she wants to have another futile conversation. she is vain and annoying, a small favor that you will do for her will be the reason for her companionship that i don't want. because she already knows that i hate the things that she's talking about .but she is so delusional that we are getting along. she is always saying things that came from media it was not hers at all, she talks~, that as if that she is an expert.i can't entrust my daughter to her because when it comes to babies she will base everything from the book like a manual. my daughter is only one year old. i remember when she forced my daughter to walk just because the book said so. my daughter got hospitalized because of her. she let her sister feed my baby nuts