I’v had a lot of headcanons about those two  when it comes to that missing period of time between the end of the war and before Sasuke leaves again.

See here

Just saying, they seemed awwwwwfully close at the end of 699, which got me thinking that they had to have spent a lot of time catching up.

And here we have a Sasuke who is allowing himself to Feel Very Good Things while Sakura explains a complicated medical jutsu to him.