This is exactly the type of behaviour we can expect from Kang on the beginning of the story. Possessive pr***. Dude is nearly 40 and act so immature. And it doesn't matter if MC like it, because Kang don't know it at the moment. He completely ignore his partner because he imagined that MC may cheat on him. This insecurity was enough for him to force himself on person he suppose to care for. He's so pathetic.