Why Did not Ravana even touch Sita

Why didn't Ravana ever touch Sita? He did touch Mata Sita. But here's the catch. He was only able to do it because he was prophesized to die at the hands of Shree Rama. “If he ever tried to rape a women, his head will explode into many fragments”- This was the curse Since, despite the lack of love for him, he ravished you brutally, O blessed one, on this account he will never be able to approach another youthful woman unless she shares his love. If carried away by lust, he does violate any woman,who does not love him, his head will split into seven pieces. However Ma Sita properly explained as why Ravana was even able to touch Sita. Sita, encased in the pride and strength of her good conduct, spoke these beneficial words to Ravana, the lord of the rakshasas. 'Your deeds are reprehensible and it is certain that there is no one who is able to restrain you from adhering to something that is not beneficial. Like Shachi is to Shachi's lord, I am the wife of the one with dharma in his soul. In the three worlds, who other than you will desire me in his mind? O worst among rakshasas! I am the wife of the infinitely energetic Rama. Having spoken these wicked words, who will free you from your destination? This is like a proud elephant and a hare who are together in the forest. Rama is said to be the elephant and you are said to be the inferior hare. You have abused the protector of the Ikshvaku lineage and are not ashamed. You will not be able to approach his dominion, not even with your eyes. O ignoble one! These eyes of yours are cruel, malformed and black and tawny. Since you have looked at me with these, why have they not fallen down on the ground? I am the wife of the one with dharma in his soul and Dasharatha's daughter-in-law. Since you spoke about me, why has your tongue not shrivelled away? You ought not to speak about the austerities Rama has observed. O Dashagriva! You deserve to be burnt down. Yet, I am not burning you down with my energy. I belong to the intelligent Rama and you are incapable of abducting me. There is no doubt that this has been ordained by destiny for the sake of you being killed. You used your bravery against your brother, the lord of riches, who possessed strength. However, for Rama, why did you resort to stealing his wife? Ramayana critical edition translation by Bibek Debroy. Ravana was incapable of abducting her in a regular condition. He managed to perform such a horrible deed, because destiny ordained his fate. He was meant to be finished by Lord Rama. Even Mata Sita herself could have probably destroyed him herself. She even roasted Ravana and he was butthurt over her words. Ravana was simply living on borrowed time. He was no saint or some complex character. He was a vile criminal and paid dearly for his crimes. Don't ever glorify Ravana! That is all!!