big news, not-so-big reaction

So my sister told my mum and step-dad on Friday that she is in a relationship with the guy she's living with. She was fully expecting to be disowned by her dad, seeing as she's 20 and the guy is at least 40. Not to mention she believed that he hates the guy to begin with. But, according to her, it actually went well. So I guess that means the travel plans for Germany and USA are still on, you know, seeing as she survived.