[He really, really can't blame Halle for that. It's the same reason he's glad Akito went for it. Lind hated having to fight for control every time he wanted out.
Odd though. Lind could block his brothers anytime he wanted. Perhaps Halle was the mentally weaker of the two. Out of the three, Lind was by far the strongest, able to break Agito and Akito's block with ease. But Agito could break him as well. Hmm]
Sounds like you're going to have to convince Acumen it's the best thing to do. Either that, or Allelujah is going to have to back off somewhat. [Alle can't dominate the time out. It will only destroy one of them in the end] Acumen's probably your better bet though. By the sounds of it, your current situation is turning sour.