Hi again OP.
As you think things through, you will, sadly, realise how impossible the situation is. None of your DC is young enough that you can have the level of control you need to continue. They are all capable - and able - to have contact with people without your knowing. So any attempt to "ban" them from seeing your DM is impossible to enforce.
Add to that the lure of disobeying you (teenage rebellion).
Then add to that the fact that if your DM is anywhere near as toxic as my MiL proved to be, they may have been priming your DC against you for this very day. They may even have told your DC that you'd stop them seeing her (whilst playing the martyr). We discovered this when we made it clear to DS we weren't stopping him see his DGP (he told us he was sure we would). However, he carried on as if we had forbade it (by sneaking around and lying about it).
Currently, we have a shit relationship with DS.
. I can only see it improving when (or if
) he finds his own mind. This may be harder to do than you'd think, since MiL can (and we are sure already has) headed off any girlfriends he may have who start to realise the truth.
saw this:
how wrong it is of her to constantly criticise my ex h In front of our dcs.
that's nothing. MiL would happily tell me what a crap dad I was in front of DS (and DW). Often. Enough that I believed it.
One day, I might write the whole saga down, as best I can, starting days after DS was born, and coming up to date. Until then, it's going to be random postings on MN when things chime with me.
Once again, all the best. The only saving grace is NC with you DM will be bliss, and you will start to feel a lot clear-headed. But be prepared to deal with others who are still fooled by the mask. Be very very careful what you tell them, as it will get back to your DM (especially if you make a point of "don't tell DM"). In our case, the narrative is that DW is being controlled by me (smiles to self at the idea) and therefore her behaviour is because of me.
As already alluded, also be prepared for a lot of "illnesses" to start developing in your family - from our experience, cancer seems popular.
Oh, there's one other saving grace of going NC. It has put you in charge. For the first time in many years. It's a situation your DM will not like. Only you can make sure it continues. I write this, knowing that MiL recently emailed DW with a "I realise ... say goodbye one last time ..." which managed to be as insulting (not that MiL would have realised) as needy. For us, it has confirmed that NC was the only way forward, no matter how much it's cost us.
Quite bluntly, our marriage would not have survived.
Sorry, derailing thread. I'm not posting anymore here, so apologies if I appear rude not answering.
One last thing (apologies for shouting) NONE OF THIS IS YOUR FAULT.