Oh? That's not a response he necessarily expected, but that at least means he shouldn't be planning on having to let go and relinquish this nice and cozy spot at Kai's side to someone else just yet. How fortunate for him.

"Really...?" Not ever? Shinji thinks it's pretty likely that, given Kai's general nature, he'd probably end up with someone as accommodating as he is, making that potential scenario literally no problem, but that... kind of doesn't sound like what he means by it. He sinks a little heavier against Kai before continuing, "Well, just in case it ever is, the offer's there."