Melanie is surprised to meet her ex-boyfriend Kai Sonderhoff again in Schillerallee. Both have not seen each other for three years and arrange to meet for the afternoon at the Schiller. Melanie tries to find out what brought Kai to Cologne. But he only gives evasive answers. To avoid the constant innuendos about Chris, Melanie asks Kai to pretend to be her new boyfriend. He doesn't mind ... Armin arrives just in time for the meeting between Martin and Dieter Wolf. He threatens Dieter with the police and forces him to give Martin his money back. A real friendship develops between Armin and Martin. Armin believes that Martin has fallen in love with one of the girls from the shared apartment. But in truth, he is the one Martin is interested in ... Out of anger, Margot reveals that Wolfgang has been paying part of Olaf's rent for months. Olaf is deeply shocked by this. He doesn't want to depend on other people's alms. Wolfgang offers to help him in the bakery.