Ресентименти is the Ukrainian transliteration of the French word "ressentiment", meaning deep-seated bitterness or resentment.
It's an interesting and somewhat rare word to find in song lyrics, especially in Ukrainian pop culture. In the context of the song, it refers to the lingering negative feelings or grievances that can trap a person, suggesting that these resentments are a pitfall if not addressed.
"Останній раз" ("Last Time") turns a small daily promise into the song's whole shape: the narrator keeps saying he'll have one last cigarette and leave, but never quite means it, and the repeated hook circles back on itself line after line.
Underneath the habit is a longer-distance love. He admits he hasn't said anything romantic in a while, that he's far from her and saving his words up instead of spending them, while spring arrives outside the window as a quiet sign that time keeps moving whether he acts or not.
The later verses turn more inward, naming things like borrowed frustration and resentment that he's been carrying instead of dealing with. The song never resolves the "last time" — it just keeps promising it, which is the point.