Good- I'm a long time lurker (I may have posted on one of your earlier threads) and have been popping back now and then to see how you're doing. I just wanted to share my experience of a toxic mother (which is the subject of a whole other thread. Or many other threads....).
I totally get your POV thinking that you can manage ltd contact with her. I thought that w my "D"M, but for a long time that was really hard. It caused me so much pain and every time I was in touch with her as I had to try really really hard to keep my boundaries firm and to remind myself that I was not being unreasonable (shouting at myself!) in whatever I was trying to do (eg arrange child friendly activities for DC, or put my DC first, not her (heresy, in her eyes), or even get support when I was having a bad time) but really I was hoping she would realise I wasn't being unreasonable and would give me the OK. It never happened. But gradually the amount of effort I have to put in to keep my boundaries firm has lessened so that now it's not an emotionally exhausting experience to be around her. Basically, I stopped caring. I realise that when she's not interested in me or my DC, it really is her loss- for SO long I told myself that, all the while desperately wanting her to notice me and them. Then I realised that the mantra I'd adopted really was true, and it really was her loss.
So I just wanted to let you know that it is possible to have contact (albeit we don't live near one another), but keep boundaries and your sanity. DH and I standing firm together helps, as does remembering that you are worth so much more than all this game playing.
Apologies if I'm repeating stuff that's obvious/you know/been said in parts of the thread that I missed, but your post today really resonated with me and I wanted to let you know that you're not alone and that it does get better, though with a lot of effort initially.