Me neither, Just watched it a little while ago and talked about it with a friend.
He said there was subtext.
I asked him when.
Only mention hand holding and one time when one complimented the other in a dress, also sending letters.
I may be dense as a brick but I didn't see it coming at all, and was left confused by it.
Also said friend mention that the one of the creators may release art or a comic on it.