Quarells are similar to historical ones between us and you. Again, Polish authorities treating Lithuanians as second-class citizens during PLC, and later also nationalist rivalry between Poles and Lithuanians from 1918-1945. Sad thing is that Lithuanians, like Ukrainians, have common interests and had common enemies (USSR and Nazi Germany/Russian and German Imperialism, Ottoman Empire/Tatars etc) and we should have stood together against them as one. This just shows you stupidity of some chauvinist (ashamedly, most were Polish szlachta/politicians).
I like both Lithuanians and Ukrainians very much and it is really pity that relations are soured by silly nonsense like this. All politicians should die.
Lithuania also feel threatened, probably, since they are 3.3 million people while Poland is 38 million. And most Poles in Lithuania live around the capital, Vilnius. So for Lithuanians, some perceived Polonization of their main city (which was in Poland until 1939), is stressful. Also, historically, many influential Lithuanians voluntarily Polonized and were effectively Poles in their professional life, e.g Adam Mickiewicz. Statues of Mickiewicz in Lithuania spell his name in their orthography, for one.
We'll see how this goes.
Good analysis, especially first part.