Mytrle and Russell had a little adjusting to do after Alvin's departure. I think they realized he was gone and it took a minute (or two) for them to regroup. He was the ringleader after all.
But it's really quite sweet. Myrtle and Russell now spend lots more time together, and lots of time just being adorable. They're happy, happy little loves.
Yep, they're all right.