"Nostalgy Lyrics" speaks about LOVE being nostalgic and dramatic sometimes... but always fulfilling. The lyrics are Romanian colloquialisms. Essentially what she is saying is that "she" wishes she had a knife to open "you" up, to see the pain you hide inside, but it is spoken in a very poetic allegorical way.
Frunză verde, foi de scai, (Green leaf, leaf of the thistle)
Inimă de putregai, (Rotten, misbegotten heart)
N-am cuțit ca să te tai, (I've no knife to cut you with)
Să văd ce durere ai. (To see how you suffer)
Dui dui dui dui...
Dui dui dui dui...