"But… you two have become increasingly used to keeping things from me. You two had privately agreed to keep that previous matter regarding Cole from me, claiming that you were afraid I wouldn't be able to hold my temper and spoil the plan. Since that was the first time, I didn't make a fuss. But this time, you two are at it again. You are clearly hiding something from me." Gu Mengmeng sounded very calm, as if making a statement of fact.
And this attitude made Elvis and Lea feel at a loss.
If she had thrown a tantrum at them, they had a hundred ways to coax her. It was when she didn't kick up a fuss which had them most worried.