Ep, sorry about the party. In-laws are tricky. I get along beautifully with mine, in fact SIL is one of my biggest supporters, but I am ever aware that he's their family and I am not. They have been wonderful, but time will march on, and we'll see what happens.
I've had a bit of heartburn lately with people we used to hang out as a couple now hanging out with STBX and the duck. How could people who used to say they were my friends now hang out and laugh with and swap stories with a woman who ripped my family apart? It's hard to come to grips with.