Are you wise? What does it actually look like to be a wise woman? The Bible says we should seek out this virtue, and so we need to know how Our lives can be built not on what we have done, but what he can give!
in the I Love You gif, some theorise he smiles a bit at the end. If so, that scene isn't The Final Problem: it's the moment Sherlock realises that Caring is an Advantage. (or it could be it just feels right, getting it off his chest, but…)