he would’ve wrapped him round his finger so well so that there is 0% possibility that happens… but if anything, somehow, goes against his plans, then sukuna would feel uneasy; that’s unexpected, and nothing in his life comes unexpected, it’s always perfectly orchestrated. that would cause him to lose his composure and act on impulse, leaving him prone to making mistakes that don’t match his usual mindful calculation. that would be the only situation where he’d show hints of his actual emotions. and, of course, sukuna never wants to let megumi go.