This storyline is going to be wrapping up soon, and I'm plotting to follow it up with a Q&A. If you've got something to ask that you don't think would be a spoiler for me to answer, feel free to ask on Twitter, Tumblr (presently allowing anonymous asks), Reddit, or other options.
There are people in Moperville who think Grace has a bunch of girlfriends. I can't imagine why.
I'm going to go ahead and note that Grace hasn't forgotten all of Sam's reasons for not wanting to tell Sarah. She just wants to make sure Sam is as aware as possible of how awesome her beloved Sarah is.
She also wants to say "ZOMG YOU SHOULD TALK TO TEDD", but doesn't know how to go about it in a way that wouldn't feel like betraying TEDD'S privacy.