i (48f) have a little girl (5) and her dad (34) split just before she turned two. We were still very much ‘together’ for some time after, whilst we tired to work through things but weren’t living to tether or sleeping together. Anyhow fast forward a while and he starts seeing a girl not long after my Dad died last year and my Mum became incapacitated all in the space of 6 weeks. I was ok with it, by that stage as I had enough on my plate. Anyhow about 6 mths later my daughter was introduced to her and she likes her and this I great (I haven’t met her). My issue is, he did some pretty nasty stuff to me last Xmas and took our girl to a friends house and I did Xmas alone. This year, I’d been asking him over and over what the plan was and a week before he tells me he’s taking her to his GF’s brothers house in the morning. Essentially I don’t have an issue with this, but I feel even though this has been his new GF for a year that he should have talked to me about it first - I can’t imagine how badly he’d have reacted if I’d done the same thing with a new partner. He then also told me that his new GF is like family now, so her family is like family and that makes them family for our daughter too!!!