I saw someone else shipping this (though I don't think they were a couple anymore in their stuff) but what's your take on Eileen & Henryk?

I believe that you are referring to Rhett, the guy that had Eileen and Henryk raise Viola together + interact romatically/sexually + THIS being Eileen's reveal to being a lesbian, and honestly I love that interpretation a lot xD

But yeah, I do think that the two have an interesting potential overall! In my interpretation, Hunters of Hunters are direct hostile counterparts of the League by the Oath Runes logic, just as Beasts vs Kin and Executioners vs Vilebloods are hostile counterparts! And I think this added the dark, grim sadism to Eileen finding out that both Gascoigne and Henryk (especially Henryk!!) started to fall apart. Nevermind her laugher sounding more detached (if not sadistic?) in original script...

(You need to listen to the 1:21 - 1:46 in this ( x ))

I just think they have a fantastic fri-enemies potential! Because... angst. Angstiness. Just like 99.99% things in the Bloodborne, whatever good moments they coulda have had are in the past and now the only option left is to KILL KILL KILL, but I think they have a good backstory potential. But unironically, I love the idea that they worked out so bad with each other that it solidified their impressions that Eileen was a lesbian and that Henryk was a gay (or rather a bicurious but mostly homosexual leaning!) yet they needed to work out their complex feelings towards each other. I have slight doubts because Eileen x Valtr work as an interesting dynamics too, but maybe I should just keep it at motherly-figure stuff strictly? xD

But yeah I think they care for each other but this awful hunters' fate can twist any sort of interaction altogether, so they are moreso like mortal enemies that woulda still cared for each other... if it was not for Henryk's unrecoverable heartbreak </3 I just think Eileen is old and psychologically experienced enough to just KNOW whether a person can be saved anymore... or never again. And she grew used to 'enjoy' her mission to 'spare' a hunter before they become a beast </3