I LOVE THE LOVE LANGUAGES. Not claiming they're the end-all-be-all or anything but I do think it's a really useful way to think about disagreements. Like when I find myself getting all wound up and thinking "UGH he doesn't care about my feelings at ALL," it's useful to step back and go 'Okay, why do I feel that way? Because he didn't ask what was wrong when I sighed. Which does not automatically mean he doesn't care... it means he didn't use the exact words I wanted him to :/'

I think people definitely have the capacity to use all of them but sometimes I have a preference depending on my mood so... yeah. It's a useful way to think about interactions with other people xD And coworkers and friends, too, just replace 'love' with 'validation' and you're still right on the mark.

My cheat when deciding these is "If my character wanted to comfort a distraught friend what would they do?" and bing, that's their love language.

Ophelia: Words of affirmation.
Ernest: maaaybe quality time but tbh I don't think he's cared about anyone enough IC to demonstrate a love language so we'll see. >>
Alfred: Physical touch
Ben: Physical touch
Thom: That Acts of Service/Gifts combo that's really into Grand Gestures, romantic or otherwise.
Tib: Acts of Service. Particularly if whatever it was did put the service-doer at a disadvantage.
Adam: Acts of Service
Emrys: Gifts/Physical touch.
Jules: Harder to say but I'm leaning towards Quality Time/Words of Affirmation combo.