DSD (age 3) lives with her mom most of the week, and stays with her dad and me from Friday afternoon (when DP collects her from nursery) until Sunday evening. This arrangement has been going on for 2+ years, since before I got with DP.
Yesterday (Friday), DP's ex texted him in the morning saying that DSD wasn't at nursery because they were going on a family day out, so DSD would be dropped at ours by 5.30pm
At 6.00, she hadn't arrived to DP sent a text - no reply. At 6.15 he phoned his ex, who said she was just giving DSD her dinner, and would bring her over at 7.00. At about 6.50 she sent DP a text saying that DSD was tired, so would be dropped over at 9.00 this morning (Saturday)
DP sent a text at 8.45 to remind her, and she called him back saying she had overslept and DSD would be at ours by 10.00. At 10.15, DP phoned his ex, and she said that DSD wasn't coming because she had a cold. DP pointed out that he does know how to deal with a cold, and to bring her over anyway, but ex refused.
After lunch, I called his ex - we normally get along quite well, even though her and DP are at each other's throats - and asked if she wanted to come over with DSD this afternoon just for a couple of hours, so that DP would still get to see his daughter. She then started swearing at me, telling me I was trying to brainwash her daughter into thinking I was her mom. She's never said anything like this before.
DP has been moping all day and he's now lying in bed crying. I have never seen him look so heartbroken, I really don't know what to do.