I think you should assume it is true, and leave it at that.
Let things settle down, and see what occurs with D7. I'd imagine she is going to bring this up to her Mom.
Me: 32 W: 29 T:8 M: 6 D4 S2 M - 8/2008 W is not happy - 1/2014 W wants D - 9/2014 W moved out - 11/2014 D filed - 1/23/2015 D'ed - 2/25/2015 Gave X the Letter - 11/10/2015