Henri was a slightly older Hufflepuff than Darling and they're both UCHB and "competing" in the marriage mart this year... What if they're friends on the surface of things but also Henri can subtly try to sabotage/throw Darling under the bus when she gets too insecure about her marriage prospects or if some guy she was eyeing pays attention to Darling? :P

I feel like I would enjoy threadding with Amity but I don't have a specific pairing that springs to mind necessarily so maybe I'll circle back to this later :/