Hey, Nat! I'm Chels, and I'm slipping in with the Irish Lord, Rowan Dempsey. He's stuck in a loveless marriage with the Irish Crown Princess, is having an affair with a currently undetermined guy because oops he's gay, secret rebel aider rawr rawr, collected and secretive with an adrenaline junkie streak, etc. etc.
For Liesel, I think he would be amicable enough, despite his hush-hush rebellious leanings? Though I do actually think he would appreciate that she doesn't have the UBER ROYAL mentality, so he might like her more than most, even if his sentiments are kept private.
For Grigore, possible that they might have had illicit relations at some point that Rowan is determined to keep quiet? Maybe when Grigore was traveling in the military and Rowan was newly married to Treasa or something? Or IDK let me know your thoughts. Either way, they both sort of push of their kingly/future-kingly responsibilities onto other people, so at the very least, they could bond over that, l o l.