Responses
I'm not sure, but Ham was basically saying how much he learned from that town and Yechan, he's 1 week away from going back to Seul, he made a new song and he already "told" Yechan(he didn't but Yechan already knew) so it's maybe a preparation for a season finale? I can see this season ending with Ham's parting and Yechan crying.

Maybe spoiler!
Okay to anyone who has read the latest raws; WAS THAT AN ENDING?