If Kai had to truly ask himself if anything he'd just read was a shock, he would have to say no, but that didn't mean he'd ever delved that deep on his own. It wasn't to say he hadn't been taking claim talk seriously, because of course he had. It was just that they'd fallen into a nice rhythm, pattern, one that he could see himself happy with and happy to add onto, such as moving into the Schuester household, getting to do more things for Harrison in the time he otherwise spent in school. All of that had made him perfectly happy and eager to belong to the dominant on it's own. To have that then expanded, options he hadn't considered as much, being both of little means and a submissive, began to overwhelm him.
Again, it didn't surprise him that Harrison would be a good enough human being to let him have those things. Hell, without even thinking about it, he had already just assumed he'd let him visit with his mother here and there, and that was before the wave of possibility that Harrison had brought up of bringing his mother into a better life in general had completely knocked him off his feet. Everything Harrison had said was wonderous, more than he could have hoped if he had hoped for more at all, so why did he feel like it'd had the wind knocked out of him? Why did he feel so vulnerable? And above all, why was this new kind of vulnerability something he felt ashamed and embarrassed about that he wanted to hide?
Just as perplexing was his wish that he'd been in the same room as Harrison when he had said all that. Kai wouldn't have had any better words to say, in fact he might have managed less knowing he could react, emote, something, rather than force himself to write something just to excuse his absence of words. After tucking his bar apron away in his locker, he made a quiet but determined bee-line for Harrison's office and let himself in, taking in a deep breath he hadn't known he had been needing, even as he felt himself very purposefully collect himself after reading the text in semi-public.
While he didn't have an exact timeline of when Harrison would be finished and ready to go, he at least knew that not having to close up the kitchen tonight meant it would be more timely than not. He took a moment to sit in a spare chair, a few tears rolling over the overflowing brim of his eyelids and down his cheeks as just let the feelings hit him, sit with him, until such a time as he felt a tear splash down on his forearm. That made him aware enough to dab at his cheeks with his hands and wrists until they felt dry.
When he heard the handle turn, he quickly got up, hesitating before taking a couple long strides to close the distance when the door shut, to throw his arms around the other man and hug him tightly. Perhaps it was uncouth and he should have said something before doing it, but it had felt somehow necessary to his very survival, holding onto him, as much as the deep breath he sucked into his lungs after he'd buried his face into the Dominant's neck.