I suspect this girl became afraid.
If you spoke to her as you write here, I can imagine as a vulnerable young woman she might have felt intimidated, scared even.

I don't mean to sound disrespectful, but you come across rather predatory. And it is a little unsettling.

Now my partner is a registered sex offender, with some quite serious convictions behind him, so for me to find you unsettling is quite an achievement.

You need help to manage your desires, this medication you took was obviously wrong for you, but there will be something out there.

You need to try and find a specialist, a MALE specialist to talk to.

I am sorry I can't really offer more advice since I don't know the workings of your countries health system.
I understand these feelings are overwhelming, and that for you Italy seem impossible that this young woman doesn't feel the chemistry too.

But she clearly doesn't. Try and acknowledge this without resentment.
Maybe try some method of distraction when you find the intrusive thoughts circling through your mind.

I really do wish you all the best. Please be well.