My MIL and I do not have the easiest relationship, I find her overbearing and "helpful" in a way that totally irritates me. She does whatever she wants and expects to be thanked for it.
It happened again today- FIL wanted to come over to borrow some tools and look at the garage roof with DH (they live about an hour's drive away). She called DH yesterday that she's coming along and will help clean and iron his shirts (he's in his 40s ffs, he's perfectly capable of ironing his own shirts). DH told her that she's welcome to come over, but she won't be cleaning. What happened? While my husband was outside with FIL and on a work call, she "tidied up" our living room. Ultimately, this means that it looks like a tornado swept through it. NOTHING is where it should be, even the furniture has been moved (eg the armchair for "better afternoon light", apparently).
This is not the first time and we've been turning down her "help" for years. Politely at first, then with a categorical no. She used to listen, but since we got married and bought a house, it's like she doesn't give a shit anymore, just comes over and does what she wants. Examples: last summer, she mowed my wildflower meadow in the front garden, because "you don't want those ugly weeds in front". She knew that it was supposed to stay, but she didn't like it, we would not bend when she complained about it being ugly, so she went and killed it. Just before Christmas, she " organised" our kitchen drawers and cupboards. She has form for ironing my clothes (destroying them in the process). Each and every time she's been told not to beforehand.
Every such incident is followed by a conversation with DH and (sometimes) FIL. Every such conversation ends in tears and with statements like "but I only want to help" and "I didn't want to do anything wrong". If DH is really angry (like when she secretly fed our dog to make him like her), it's "but I just want to feel needed". She then tells her sob story to her brothers, who then call my husband complaining that he's not treating his mother right (we're talking about people in their late 60s).
Today, as I came home from work, she welcomed me with "I hope you're not angry with me". I said nothing. They were already leaving as I came in. I'm fucking FURIOUS. I have better things to do than arrange my living room back to the way it should be. Now she's blasting me with text messages all saying "I hope you're not angry with me" and "I've just tidied up a bit". I've ignored her so far, don't even know what I should answer so it it doesn't turn into a huge drama with her in the leading role of Victim. She still doesn't understand that she did something wrong, it's like talking to a teenager.