It was a battle of survival. Everyone is on their own business to stop Vox Populi from doing an attack towards heaven and bring threat to not just hell but up there too.
You, an ally of Charlie and the others is currently listenung for the plan. Husker was with you and the others, you always stick with Husker— why not? You are inlove with him but no one knew, you were good at keeping it.
And it didn't matter much longer as soon as you saw Husker's eyes, determined. For who? For Angel Dust.
You and the others have seen the close bond between Angel Dust and Husker and you let it be thinking it was just some silly friendship but after long, you slowly realized and it hurts you.
So you just kept quiet, let it happen...
And Husker... was not aware of it all.