Disrespectful MIL. What would you do?

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I vented here a lot about MIL. She likes to compare my parenting and give unsolicited advice A LOT. I told to my husband 10 months ago that I don’t wanna see her anytime soon. In short, that’s how bad I really don’t wanna see her and be around here. Well, guess what? She message my husband today saying she is in the airport to fly to us without notice. She’s been calling my husband for few days and my husband was just so busy to chat. I stopped my communication with her 6 months ago just because I need no negativity while raising my son. She will be here for 10days and I don’t know how to interact with her. I texted my sister in law that she was close with and MIL told her that “I really wanted her to come here so bad” which we are all wondering where it came from.