Towards the beginning of the episode (while on the phone with Gus (Steve Kazee)), Fiona (Emmy Rossum) can be seen wearing her wedding ring on her right hand instead of her left. In some cultures, when a person moves their wedding ring from their left to right hand, it is the equivalent of removing the ring entirely, meaning that the person is open to cheating on their spouse.
The laptop Fiona (Emmy Rossum) uses while she is waiting for Gus (Steve Kazee) has an 'I Love Justin' sticker. Steve/Jimmy was played by Justin Chatwin. The sticker was because of Justin Bieber.