Season 7: Episode 17 - I Found Your Moustache

I Found Your Moustache: Charlie runs into Chelsea and Brad at the movies and can’t bring himself to sit through it knowing they are both there. Still depressed from the breakup Charlie makes Alan go with him to Chelsea’s house to spy on her. After seeing that Brad doesn’t spend the night, Charlie then follows Chelsea who starts driving to Malibu. We realize she’s driving to Charlie’s house for a booty call. The next day Chelsea goes home and Charlie realizes that she never intended to get back together with him. His depression leads him to Tom (Chelsea’s gay father) and his boyfriend Ed’s house where they offer him relationship advice on the comforts of male companionship.