I'm happy with this ending. Even Prentiss' leaving and telling Derek about it went well. Paget, the actress, never felt right about the way the studio execs pulled her back onto the show without ASKING her if she wanted to come back. It was in her contract and they did it. But, Paget had, in some ways already moved on. It makes sense to have Emily not feel right all this time, too.
I knew her easily coming back & pretending all was all right, was a bit off.
I was worried it would be cheesy, but it wasn't at all. I loved it. That may be my favorite episode ever. They definitely redeemed themselves after last season. And no cliffhanger for us to panic about all summer