I cheated on you — and I have no excuses.
ti ho tra-DI-to — e non ho SCHU-se — stress on 'di-', 'schu-'. Said with gravity and remorse, not defensiveness.
Confessing infidelity — the most painful type of breakup conversation, requiring honesty without deflection.
'Ti ho tradito' = I betrayed you / I cheated on you (passato prossimo of 'tradire' — to betray, to cheat). 'Non ho scuse' = I have no excuses. The combination of confession and lack of excuse is the most honest approach — it accepts full responsibility without seeking mitigation.
Ho fatto una cosa terribile — e devi saperlo.
I did something terrible — and you need to know it.
Without naming the act first — building to the confession
Ho sbagliato — e non c'è niente che possa giustificarlo.
I made a mistake — and there's nothing that can justify it.
'Non c'è niente che possa giustificarlo' = uses the subjunctive after 'niente che'
Meritavi più lealtà di quanta te ne ho data.
You deserved more loyalty than I gave you.
Credits the person's worth while admitting the failure to honour it
Infidelity ('il tradimento') is one of the most serious violations in Italian relationship culture. The word 'tradire' means both 'to cheat' and 'to betray' — a telling overlap. Italian culture expects a confession to be direct, remorseful and unqualified. Trying to explain or minimise a betrayal is seen as making it worse.