It's Time to Kill the Turtle (S01E08)

When Frank gives up drinking, Sheila worries he'll no longer be attracted to her, while Carl and Debbie enjoy having their dad back - despite Lip's warning that it won't last; Fiona barely has time to notice Steve's suspicious behavior as she scrambles to earn money and find a better job; when Lip meets with a college professor, Karen begins to question their relationship. (Showtime)