Allen might scheme again, but it was all for the sake of Alisceon's well-being. He wouldn't do anything that would endanger her life.
That was why he even bothered to see through Reid's true personality since he didn't want to entrust Alisceon to someone who wasn't worthy of Alisceon's love.
After all, if he didn't love Alisceon and just treated her as his tool and not his little sister, he would have just chosen anyone to entrust Alisceon to. And that carelessness might result in Alisceon being entrusted into the wrong hands which were unacceptable for Allen.
Since he loved Alisceon, he would do what was best for her. Even if she didn't agree at first, he would let her realize that what he chose for her was the best.
As the Supreme Order, if Allen's choice wasn't the best even when he deemed that choice as the best, then all of the other choices were the worst!
