The modern way is to see what parents want, say or do as ok. Quite often it isn't as in this case. Your D. likes drama. Don't give her any. Go and have a lovely holiday and spend some money on yourself. Be polite and visit when asked around. I know it hurts but it's a planned ambush. Any attempt to say your piece will turn you into a stereotype, the interfering mother/ MIL can be trotted out very unjustly sometimes.
Are late deals a thing of the past ?


