Are you aware of any testimony saying that she wasn't?
I believe someone else testified to being her best friend. But even if that weren't the case, I'm curious what evidence, if any, was introduced to back up the sister-in-law's claim of friendship. Things like photographs of her with her sister-in-law, letters, autographed or personalized gifts, testimony of others about their friendships, etc. If you know of any, I'd like to hear of them.