There are 2 sides to every story, corny I know but how many times do you read threads on hear or see it in real life loved up perfect couple but actually under ther surface he is controlling/she is cheating the list goes on! I don't know why they split but I don't think it's odd to cut ties with you ex when you do!
As for the friend again who knows what happened but selling a story is only going to convince Meghan she was right.
I have never heard about dorias extended family have they spoken out too?
It's hard to know I guess I feel sympathy for her as while I will put up with a lot when people cross the line that's it they are gone maybe Meghan is the same maybe she has been bitten in the past. It does seem like her way of dealing with conflict is to cut people off but without knowing her reasons it's hard to say if that's the right or wrong way to deal with Issues!