Hi!
I had been looking for a fanfic that had Gibbs and DiNozzo (as a couple) owning a cafe, that the Avengers liked to go to. I meant to edit and say that I found the story, but deleted it by accident (oops). It's, 'Platitudes,' by cutsycat. It took some time to find it (as well as a small migraine), but I did. Thanks!
https://archiveofourown.org/works/15782670 Thank-you!