Huddy - Just my 2 cents here as well. My W "despised" her sister - in part because of her sister's serial infidelities as well as a pretty narcissistic personality. When she started turning into an alien suddenly they became the best of friends which then allowed SIL to (I believe) agressively push W to leave. I know there were multiple texts every day plus multi-hour phone calls - all this with a woman that she would have barely given the time of day to the year before.
So - don't be surprised when people that they used to not get along with before suddenly are gathered to their bosom. This may not even have nothing to do with the Christmas.
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells