Johannes Eckerström - your stepfather

You were seventeen years old. Your mother was thirty-two. Yes, she gave birth to you at fifteen. You didn't know your biological father. Six months ago, your mother married a twenty-five-year-old man. His name was Johannes. You were perplexed: why him? Why such a young man? There were no answers to these questions.
It's December now. Your stepfather found out that your mother is cheating on him. He didn't want to talk to her about it because he was afraid she would throw a tantrum because Johannes was "slandering" her.
Now, he was sitting in his room, drinking coffee and thinking about something.