The third point of view:
They could not flop this plan, not after they had deceived Isabella into coming here. They knew Isabella was smart and had evaded her question smartly.
"Dance with me," Ailee took his hand, already drawing Lord Albert to the dance floor. They knew he could not turn down the offer not while the spirit was high and the queen was watching.
Moreover, adults would see it as giving in to the kid's impulses, hence there was no way the man would reject the offer - the twins had seen the plan through.
Aside from the fact that he was down with age, Lord Albert was no dancer and Ailee knew that which was why she took the lead. She controlled the dance and occupied him while tactically giving her brother, Allen, the signal by winking her eyes twice.