what's your favorite thing about Reedpipe that drew you to the ship in the first place and keeps you interested in it? for me, it was seeing the cg of Bagpipe princess carrying Reed, then later on finding out about the sheer angst and/or comfort potential the ship has, and currently it's thinking about how, since Reed seems to be hot to the touch according to her voice lines, Bagpipe is likely one of the few people able to stay in close vicinity or physical contact with her due to the nature of vouivres.
I think the princess carry CG was the same thing that made me go [eyes emoji] at it, too! There's something so notable about taking care of someone who's supposed to be your enemy. What keeps me interested is that Reedpipe got along very well, despite Reed hiding her identity from Bagpipe. Bagpipe lost friends and colleagues due to Reed's actions, and personally I find relationships to be a lot more interesting if at least one person is, for all intents and purposes, responsible for the other's pain. Part of Reed's development is accepting her own responsibility/identity as a Dublinn leader and the choices she'd made, when she had tried to flee/distance herself from them.
'What the Firelight Casts' ended with a somewhat hopeful outlook that Loughshinny and Fiona will eventually reconcile (the onus is more on Bagpipe's side), because Bagpipe knows that Reed is as kind and genuine as she presented herself to be. That wasn't an act. She has to come to terms that the Reed she remembers and the Reed she got to know are the same person, with all the conflicting emotions that entails.