My husband and I have 2 kids (7 & 5) and he also has a 16 year old daughter from a previous relationship. We've been together since she was 4, her parents split 18 months before we got together and her mother was always massively over protective and made contact with her father really difficult. My husband and his ex hate each other and can hardly hold a civil conversation, which I find hard work but my step daughter just seems to think is normal. I guess for her it is. She comes to us every other weekend.
This weekend is her weekend with us. it turns out my stepdaughter is going to a party with a male friend and then having a sleepover with him. Her mother has okayed this.
My husband actually asked his ex about the party/sleepover as step daughter was really bad tempered and refused to answer any questions about the party, saying she had told her mother. The mother replied with minimal answers: She knew the vague area the party was (15 mins drive from where the kids live, in a city with basic public transport) but didn't know whose party it was, who would be there or the phone number of the boy's parents where step daughter will be spending the night. These details were eked out over a few text messages with long delays and ignored messages. Stepdaughter said it was okay because her mother tracked her whereabouts on her phone, so knew where she would be. Turns out mother had gone away for the weekend with her boyfriend, so would not be easily able to pick up daughter if needed.
I have much younger kids, so maybe I'm still in the primary-school parenting mentality, but is this normal parenting for 16 year olds? The mother seems to have gone from so overprotective that she wouldn't let the kid paddle in a river, to completely blase about her teen daughter's safety. Surely the very least you should do is communicate what's going on to your ex - even if you hate them. I'm just a bit mystified about the complete lack of apparent concern for an emotionally young 16 year old, who physically could pass for a lot older.