Sylvester is the new captain of the BEST TEAM OF THE BEST HOUSE, and he and Faye have been playing side-by-side for at least a year now. Sy may be leaning on that no-nonsense attitude a bit as he tries to corral all these difficult personalities into a winning team. He's got a kind of hypermasculine alpha male thing going on, but by now I imagine he knows how competent Faye is and won't be trying so much to posture with her. He and Bailey possibly won't click well since he's loud and aggressive?
Mina (resentfully) is a senior, and shares Choir and Duelling with Faye. I'm not sure how they'll get along—both of them are take-charge kind of women, but I don't see any particular reason Mina would dislike her, so it could go either way. And I think Mina will be inclined to be relatively nice to Bailey—fellow Canadian Ebonhide, hard worker, both in Animagus Studies. Mina's not exactly a nice person so it's probably not GOOD FRIENDS status, but Mina may sometimes show interest in Bailey since she's so mysteriously quiet.
Ravi (paladins) is a Ribbonfin senior prefect. He's in Archery and Duelling with Faye, and Equestrian with Bailey, so he's familiar with both. Ravi might actually have more reason to talk to Bailey than Faye, since he'd see Faye as someone who's Got Shit Figured Out and isn't enough of a troublemaker to require prefect intervention, whereas he'd be curious about Bailey being so introverted and awkward. Ravi always worries about making sure that everyone's doing ok and fitting in.