Peter and Iris Klein, stepfather and mother of reality star Daniela Katzenberger, have been making the headlines for days because he fell in love with another woman. The Kleins have been in a relationship for almost two decades, have been married for 17 years – and now suddenly there is another woman in Peter's head. Does this have to be the end of his marriage?

Christian Hemschemeier has been a couples therapist for many years and is a bestselling author ("The Love Code"). He has been counseling couples and singles for more than two decades and has frequently had clients whose partner has developed feelings for a third person. How to deal with it - Hemschemeier reveals that in the stern interview.

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