As I said to my parents when they said something similar:

Not everyone is a 0 or 6 on the Kinsey scale. Plenty of people have some amount of choice. But not everyone is a 3, either. Most people have a preference. And some people are a 0 or 6. Just because one person with “gay temptations” successfully lived as a heterosexual doesn’t mean everyone can. The world is more complicated than that.