Before I gave birth to my son, we told my MIL that we wouldn't go to her house as long as she was smoking indoors, if she was to start smoking outside, we would allow son to visit. We made it clear she was more than welcome to come and visit us at our house (5 minutes away) or go for lunch with us, park, walks, softplay etc.
She flew off the handle, repeatedly called me a c*nt on social media. Said my son wasn't my husbands' child. Said she didn't care about me or our baby, just her own son. Tried to turn me against my own family by saying they'd called me names at my wedding which they hadn't. Goes around telling everyone that I refuse her access to her grandson. Tells everyone I had PND (which I didn't) and I won't allow baby round to her house due to my crippling anxiety (not true). Told my husband to leave me because I'm controlling and tried everything she could to break down our marriage. After all this, she threatened legal action as she apparently had rights to her grandson, which according to her wasn't actually her grandson anyway as he's not her sons child. 🤔 I said ok, go for it. She'd met him twice briefly in a year and a half and had caused no end of upset and hurt for our family throughout my sons life. We never received any court documents or communications in regards to legal action. There's more, but off the top of my head I can't even remember the whole saga.
In the end, she came knocking on our door to speak to my husband, he wasn't at home but I invited her in to talk, I said we'd wipe the slate clean but I said this has to be it, we don't go back to that awful time. We start fresh and that has to be that. She came round to ours a few times to see my son and it all seemed pleasant.
Then a month later, my husbands birthday came around. I messaged her telling her we were going out for a meal and we'd be in at X time so she's more than welcome to come round then, also suggested getting together with his family at the weekend so everyone could see our son and we could all have a catch up and a few drinks. My husband wouldn't have got in contact at all if I hadn't have text her. I got a whole tirade back telling me not to tell her when she can come and see her own son, that I'm controlling, some really nasty messages in all. I just said, ok, I'm sorry that's the way you feel.
Neither me, my husband or my son have had any contact since and that was over 12 months ago. She had a month in my sons 3 years of life where we had what I thought was a budding relationship and then she reverted back to exactly who she really is.
I don't think she deserves any contact with our son. I made it clear to my husband, if he wanted to maintain that relationship and go and visit her with DS then I wouldn't have any issue with that, but he doesn't want to. I learnt the hard way why he was so low contact with his family in the first place.