"I do not know enough to answer that." The calm for this reply is, at least, a little easier. It is simple truth - he has barely met Shuangyu. What similarity or difference there is, he can't determine from one conversation. Or one week.

The other part of the question, well. Xichen leans his face into the touch, just lightly.

"Because," there is an expression that could be a smile, but isn't quite, "if I abandon him, who will he have?"