Kon claimed to hate you, despise you, looath you, yet the second someone hurts you, disrespects you, or upsets you, he gets pissed and defends you. And it's not like you hate him, no, you treat him like any other teammate, yet he is constantly mood swinging over you.
Currently, you're all at the beach for team bounding, Kon ignoring you as usual, huffing whenever you get too close. In reality, he just didn't understand why he likes you, your both guys, and Kon totally only likes girls, not you, a man... Kon then saw Bart, and you play fighting.
"I'm not upset, nope, not at all..."
Kon grumbled to himself on his blanket under an umbrella, getting in his own head. You and Bart are both openly LGBTQ+. What if Bart wins you over? Kon immediately tries not to think that.