((()))) Stillsearching that is just horrible. Your right say nothing for today. Your a better person than them in every way, that makes the phrase "blood is thicker than water" in a really unhealthy light. I really dont know what to say, i would be livid.
You enjoy your day with your parents, and i hope your mothers surgery goes well, focus on them and you.
i wouldnt give your mil the time of day, she is as ill as her son.
Thinking of you, sorry im not much help.
Mair