Yes, cognitive dissonance is the keyword to understanding Sara's behavior. She indeed did some bad things, and totally messed up Teis' life too. Which is exactly why I respect her when she realized the damage she's doing she was able to give up all the support, and her own "happiness" for the well being of others. That, I feel is a much more moral thing to do, than not to sleep with someone who's not your spouse.
In "leech" I was referring also to the damage she was doing to others while she was getting help, not just the acceptance of help (leeches don't just feed themselves, they hurt you in the process).
PS: someone said the beards are acceptable in Denmark. It is not true for the whole Europe however. I never heard of actual problem because of that, but I am sure they wouldn't tolerate an elder with beard here (Romania), neither I ever saw anyone (not just elders) with beard. On that note my first ever FS experience was when I showed up neatly dressed, shirt, nice pants, and without a tie... so instead of going to my first FS we went to the JW who "studied the Bible" with me, and studied some more WTS publications, especially focusing on the points of dressing. My dressing was perfectly fine, I could have walked into a business meeting and feel right at home, but FS without a tie... no way.