Celborn, Galdriel and Elrond

[Kuruharan]

Furthermore (and I believe I posted this question before somewhere) where not Beren and Luthien lovers before they married? Well, Tolkien never actually says anything specific on that regard, but I believe it was certainly suggested that they were.

There is certainly room for different interpretations there.

After Beren sees Luthien for the first time, goes wandering through the bracken all hot and bothered for a few months, sees her again, and passes out the story goes...

Beyond his hope she returned to him where he sat in darkness, and long ago in the Hidden Kingdom she laid her hand in his. Thereafter often she came to him, and they went in secret through the woods together from spring to summer; and no others of the Children of Iluvatar have had joy so great, though the time was brief.

It really all depends on what interpretation you place on the words. You can take it any way that you like.