Two and a half men S01E06
Charlie tries to teach Jake to avoid certain calls that Charlie doesn't want to deal with, like his mother (Evelyn) for one. Evelyn gets so frustrated with not being able to talk to Charlie, that she decides to drop in while in the neighborhood. She invites them to dinner, to meet her new boyfriend (Tommy). When the brothers get over to their mothers house, Charlie is shocked to realize that Tommy's daughter is Olivia, one of the people he has been avoiding. Olivia tries to confront Charlie about their situation, but doesn't get the answer she wants, and throws a drink in his face, then storms off. After a week of not being able to contact their mother, Alan gets worried about her. So the brothers decide to go to her house and see if she's okay. They find her sitting in the dark and drinking, and she informs them that Tommy dumped her for a younger women. Later the brothers get Jake to try and cheer her up.