Much of the fan mail Ben had received since the show ended consisted of fan fiction and requests for Ben's feedback on said fan fiction.
There were some good ones for sure, and plenty more that were bad and/or full of too many grammatical errors for him to clearly understand what the heck was going on, but the inexplicable "adult" fan fictions (especially the ones in which Ben has a "harem") really stood out to him, and not in a good way.
It wasn't exactly top secret information that Ben had more than a few romantic pairings on the show, especially in Omniverse.
His problem with that wasn't just that a supposed loser with a terrible personality still managed to score way more dates than he could have in real life, but also that it was kind of unfair to the female characters.
Why does Kai get called names for NOT wanting to hook up with Ben in the original series, but almost no one bats an eye if Ben has at least 8 or 9 love interests throughout the show?
Seriously, Kevin (from Alien Force onward) had a way more stable love life than Ben, and Kevin was the Han Solo-type of the series.
In fact, Ben himself wrote "The Most Dangerous Game Show" as a satirical critique of the "harem" fan fictions and the ridiculous ways the show covered both Ben's love life and female characters in general.
So Kai knows that he at least tries to respect women, which was more than she could say about half the people in government.
Ben found her on the living room couch, searching her bag for something.
"Do you remember about two years ago," she asked, "when you showed me that story based on Kevin's first episode in the original series?"
"I guess so. Why?"
She finally pulled out a CD case containing a disc with the words, "Malfunction (Demo)," written on it in marker.
"It gave me an idea for a song. But I got so carried away that I ended up with an EP's worth of material."
"You've been working on that for two years?"
"Oh no, this took about a month. I just kept forgetting to tell you about it."
She stood back up and handed it to him.
"Thanks," he said, examining the disc in his hands. "Should I listen to it now?"
When he looked up to her again, she was already on her way out of the room.
"Knock yourself out. I'll be in the shower if you need me."
Ben stood for a moment, following her with his eyes.
"Would you mind if I joined you?"
Kai turned back around, taken a little by surprise, and saw he had a kind of eager expression on his face like a VS Angel was begging to have his baby.
"If you're not ready in 3 minutes, I'm getting started without you."
Then she disappeared from his sight.