“What’s the difference between Ruthenian and Ukrainian?”
There are some geographical, linguistic, and cultural differences. Mind you, Ruthenians would generally get along with the Ukrainians just fine (outside of Church!) because they share so much.
http://www.antimoon.com/forum/2004/6162.htm
http://forums.catholic.com/showthread.php?t=624156
http://steen.free.fr/rtc/ruthenian.html
The differences have been argued for decades: https://books.google.com/books?id=_HpNAAAAMAAJ&printsec=frontcover&dq=The+Ruthenian+Question+in+Galicia++By+Wincenty+Lutos%C5%82awski,+Eugeniusz+Romer&hl=en&sa=X&ei=w6c7VbTeFoLJtQWq14HoCA&ved=0CB4Q6AEwAA#v=onepage&q=The%20Ruthenian%20Question%20in%20Galicia%20%20By%20Wincenty%20Lutos%C5%82awski%2C%20Eugeniusz%20Romer&f=false
Sadly, these differences - which seem very small to outsiders - have led to some real absurdities in the West and East. In Omaha there is a Ukrainian Catholic parish, I think this the one: https://www.facebook.com/pages/Assumption-Ukrainian-Catholic-Church/113780958643736 which is now offering a Ruthenian liturgy once a week in addition to it’s “Ukrainian” liturgies. I bet that almost all of the liturgies are in English and all are the liturgy of St. John Chrysostom so why split the congregation that way? What’s the real difference?
And others have noticed this problem:
Pavloosh: “Why would you want to organize an Eastern Catholic church when there already is one in Omaha?”
Fr. Deacon Lance: “Ukrainians had no problem starting a parish in Knoxville when there was already a Ruthenian one there.”
Pavloosh (responding to someone else): “What does THAT mean?”
Fr. Deacon Lance: (responding to Pavloosh): “Your full of it.”
Pavloosh: “And you are a deacon? God help us.”
http://www.byzcath.org/forums/ubbthreads.php/topics/410667/Re:_Starting_a_Ruthenian_Commu
And this is what they were arguing about: http://www.chrismnews.com/#!Light-of-the-East-Beginning-to-Shine-Brighter-in-Omaha/cjds/5514ae710cf21d84af59e4de
Having assisted at Divine Liturgy at Assumption Ukrainian in Omaha, I can attest that there isn't much there in English. IIRC, the priest gave a long homily in Ukrainian and a shorter one in English. All of the prayers and responses were sung in Ukrainian, though. Gospodi pomiluy!