Klitzekleine is a charming and somewhat playful word that means "tiny" or "minuscule." It's a compound word, combining "klitzeklein" (tiny) with the diminutive suffix "-e," emphasizing just how small something is.
In the song, Adel Tawil uses it to describe "jede klitzekleine Narbe" (every tiny scar), suggesting that even the smallest imperfections or hurts from a past relationship hold a place in his memory. It's a more evocative and less common choice than simply saying "kleine" (small), making it stand out.
"Was wirklich gut war" is Adel Tawil's account of a relationship ending, told from the point where the anger has already burned out. He names the cracks, the broken promises, the words that were said too easily and the ones never said at all — but the song isn't about staying angry at any of it.
The chorus is the turn: instead of holding onto the shards, he chooses what to carry forward. "Nur das, was gut war" — only what was good — becomes the thing that survives the breakup, deliberately, as a decision rather than a feeling that just happens to him.
By the final verse he widens that to the whole relationship, "the good and the bad," and lands on the same conclusion: even counting everything, it was still worth it. It's a breakup song built around gratitude instead of resentment.