Maledetto literally translates to "cursed" or "damned". It's a strong, evocative word that carries a lot of emotional weight.
In this song, the singer uses it to describe a past love, saying, "Ti ho amato tanto maledetto" (I loved you so much, you damned one). It conveys a sense of intense, almost painful love, tinged with resentment or frustration, making it a very impactful and memorable choice.
Emma is a straight up pop belter, and this song is about the mask she puts on right after a breakup wrecked her. The hook, "Le ragazze come me non sanno piangere" [girls like me don't know how to cry], is the whole song in one line. Not that she doesn't feel it. She's decided not to show it.
She's honest about the mess underneath that front, too. "Ci si perde troppo presto" [we get lost too soon] opens the song admitting how fast things went wrong. A few lines later she's contradicting herself on purpose: "Amore ti detesto" [I hate you, love], then "Ma ti ho amato come mai nessuna" [but I loved you like no other]. She even threatens where the fight is headed: "Arriverà la polizia" [the police will arrive]. The old her is gone too. "L'ho già dimenticata" [I've already forgotten her]. What's left is someone tougher, not someone who's actually over it.