DSD (15) has been staying with her mother this week. DP and I are planning to go to a party about 150 miles away, her mum and sister are going to a different party about 80 miles away. DSD told her mum that tonight she was going to a party at A's house, then staying over at B's house. Her mum bumped into B's mum this morning and turns out they were not staying at B's, that A was not having a party at all and that in fact the party was at our empty house.
DP has gone to collect DSD as his ex has already left for her party. We are staggered at the level of deception (turns out now that she and B have done this before when B's mum was away - lied and said she was there/that B was staying with us as arranged, which we only just worked out from talking to B's mum today).
It's up to DP what he does - but here is where I disagree - he wants us to still go to our friend's party but with DSD. I think she should not be going to any parties and I'm happy to forgo it in order to show how serious we feel this is.
Or am I a meanie who would cut her nose off to spite her face?