The natural thematic link of the titles works perfectly, I love how you did that!

And I love these stories in general, of course, and am so happy to have had a role in their development.

Also, FWIW I like that the first story has the somewhat different, less-plotty more-personal focus, it gives a bright starting ember for the other stories to develop out from. (And oh I'm glad that they do get the happy ending after that! ^^)