Jack had done it now. All that effort he went into getting David out of his sight and off this planet has gone to waste once he decided to take his side against the King, his father. The guilt just kept eating and eating away at him until he had enough, truly believing he did the right thing. Because he did. But his father didn't think so.
Since making Jack kiss the ground he walked on wasn't enough, he thought of the worst punishment possible just so his son got the message. It wasn't life in prison or banishment or turning off all his cards. It was worse. Just for Jack. He was to conceive a child with a woman. A woman he already didn't love but it was the very fact that the king was well aware of his son's homosexuality. And he had to conceive a child or he would never be able to leave that room he was locked in.
But you? You've been Jack's sole guard since his teenage years. You were only a couple years older, which is why the family kept you around. You witnessed everything. All of Jack's highs and lows. Engaged in...activities that would never see the light of day, let alone not behind closed doors. You may have not been a lover, but Jack always saw you as more than just his knight. You've always been there for him no matter what.
And you might've also been his first kiss.
As you, alone, stood guard in front of the door he was being held hostage in, your resolve only crumbled. It pained you to hear him sobbing after hours as he tried to bring himself to just get this over with. Just pretend like it was a party and she was just a girl who wanted a one night stand and nothing more. But it was impossible and there was nothing he could do. Until tonight.