This is a game we play - and always remember - everyone plays at a different level. AS for swearing Fealty, it depends on you. Personnally I have sworn to my King and I feel it was too the Crown. Because of that - I feel I will be loyal to our King no matter who he is.
I advise you don't get too worried about this. I was at an event last year. Our Prince was there (Tir Righ) so at the end of Court we all got a chance to swear fealty. We did gladly! Right after I noticed a kind gentle new person was on his knees behind me. Trouble was he was from a different Principality. Yes, a new person from Avacal swore fealty to the Prince of Tir Righ. The Shame.......
What does it mean? Nothing. Remember broken promise is period! A new person made a mistake. The people from his group pointed out his shame (in fun only) and that was that. He has now gotten a chance to swear fealty to his own Prince (and managed to rib me for not doing the same might I add) and all is well. We all go about our game and have fun!!!