That Lithuania calls itself in some ways succesor of GDL? Who else then? Beloruss? They don't care!
As of right now, Belarusians live in a semi-communist dictatorship and they've got more pressing problems on their hand than historical self-reflection. You can bet your 5 litai that if Belarus becomes a free, independent country, Belarusians will be much more vocal about reclaiming GDL (*).
Look at posts that followed mine they all with an air to ridicule Lithuania.
Is this your first time online? In case you haven't noticed: the anonymity of the Internet brings out the mean streak in most people, because there are no penalties that curb such behavior in real life. Aggressive voices are overrepresented in all
online discussions, but they don't reflect real life. Just disregard them and concentrate on those who engage in rational debate.
Try to think hard [...] Think hard! [...] Think hard!
Can you please save the puzzle games for your kids' after-school program? People have busy lives and have no time to figure out someone else's obtuse hints. If there's something on your mind, spell it out in clear, plain English, so that it can be discussed.
But than again it's the same story with the Commonwealth and Poland, which similarly to Lithuania and GDL, also thinks of itself as a natural heir of Rzeczpospolita, even though Pl is a homogeneous country these days.
False analogy. PL/Commonwealth (CW) and modern Lithuania/GDL are not equivalent. Poland's case as the heir to CW is much stronger, because of the historical convergence towards Polish culture and language in the CW, away from other ethnic components. It was the non-Polish nobles in the Commonwealth who went through a widespread and willing process of Polonization, not the other way around. The cases of Polish nobles becoming "Lithuanized" or "Ruthenized" are non-existent. In GDL, the historical development over time points in precisely the opposite direction: away from its Baltic origins, almost down to the point of extinction. For this reason, Poland can be seen as the "target" towards which CW was converging over time. Lithuania cannot be seen as the "target" towards which GDL was converging over time. Quite the opposite.
What drives Polish people crazy is that Lithuanian do not think that the Commonwealth for them was a good thing.
What drives Polish people crazy are real estate prices and the antics of Polish politicians, not what Lithuanians think. You're severely overestimating Polish interest in Lithuania.
With adoption of Constitution of May 3, 1791 Lithuania became nothing more than a province of Poland
You're quite right and notice the word "adoption" in your own wording. The Sejm MPs from both the Crown and the ex-GDL freely accepted the 3rd May Constitution, without any need for Crown troops to march into the ex-GDL to enforce this arrangement. You, as a modern nationalist Lithuanian may not like it, but that's exactly how things played out.
ridiculous pretense on the First Constitution in Europe
Which constitution in Europe preceded 3rd May, 1791? Please give a specific example.
(*) Another misnomer is to call the historical Ruthenians ( "Rusini" ) "Belorusians" or "Ukrainians". The modern nations of Belarus and Ukraine didn't exist during CW's era and their formation was a 2-3 centuries off into the future. Any Eastern Slav within the boundaries of the CW was simply a Ruthenian ( "Rusin" ). Any Eastern Slav outside the CW was a Moscovian ( "Moskal" ). If you travelled back in time and stepped into a tavern in the 17th CW and introduced yourself as a "Belorusian" or an "Ukrainian", noone would have the slightest idea what you're talking about. The historical Ruthenians evolved into many ethnic groups: Belorusians, Ukrainians, Rusyns, Boikos, Lemkos, etc. The modern-day Belorusians are probably the closest thing there is as far as descendands of the Ruthenians, but they're not the same. There's a similar disparity betwen modern-day Ukrainians and the historical Cossacks. It's true that most descendants of Cossacks live in modern day Ukraine. But the historical Cossacks had no modern-day "Ukrainian" agenda. They had a class agenda related to their marginalized social status in the CW. They were an ethnic mixture of disenfranchised peasants, mercenaries, nomads, outlaws, etc, not a Petri dish proto-"Ukrainian" nation.