Prince loves to take people under his wing, so he would be THRILLED to take on helping Em figure her shit out!! He has no particular credentials that qualify him for the job, but he sure does think he's wise, anyway.
YES awww that would be so sad!! He'd just be like >:| SCRAM. to the kitty, but he'd be super sweet and protective with Em!
Lucky will definitely offer Em scraps from his dinner and all kinds of tasty treats. And his wild child upbringing makes him the most unlikely person to ever think a cat belongs in a shelter, so he'd understand that she belongs to no one in particular and just welcome her in when she comes to hang around and let her go when she wants out!