After some advice...
Ex and I separated 2 years ago now, (still not divorced but that's a whole other story), have 2 kids, 10 and 6, eldest has anxiety and was seeing a counsellor last year but seems to be managing it better. He sees the kids EOW and one night a week.
About 3 weeks ago I discovered that ex was having his girlfriend sleep over with him when he had the kids, but the kids weren't allowed to see her so they were told not to go in his room during the night or downstairs in the evenings etc. The kids didn't know he had a girlfriend, hence keeping them separate. Anyway, I raised safety issues with him on this and said either don't have her there or introduce her so the kids can get to know her and not feel uncomfortable.
So 10 days ago she met them, all good... This week kids go to his overnight and come back the next day and tell me she's now living there. So they have met this woman once, didn't even know daddy had a girlfriend until 10 days ago and now she's in their home.
So this is the part where I need to know if I'm wrong. I spoke to him (very calmly and reasonably btw) about it and said I didn't think his decision to move her in had been made with the children's best interests in mind, that it was too fast, and that I think he should have had the courtesy to at least tell me so I knew how to manage the children when it then got mentioned.
Anyway, he's gone mental at me, I'm getting abusive text messages saying I'm severely out of line. He has a history of emotional and financial abuse so I'm pretty scared now as to what is going to happen. Was I wrong? Should I have just not said anything?