Booked a table for our first family meal out tomorrow, for myself, DM, 2 DCs and my boyfriend. It’s a late birthday celebration for DM before she goes away to visit her DM who is unwell. DSIL has messaged me to say that my nephew is upset not to have been invited as it’s his birthday tomorrow. For background, nephew turns up at our house almost every weekend, even when I say we’re busy, expects to stay all day long, be fed, etc. and generally out staying his welcome. I feel it’s up to my DSIL to entertain her son on his birthday and that I can choose who I like to take out for a meal! Am I being as mean as I’m being made to feel?