Maybe suggesting couples therapy could help you both express your feelings in a safe space. And about her ex, that's a whole other issue that definitely needs addressing.

I'm talking with her psychologist to make an appointment, but first i wanna make the last effort to talk with her.

NTA but antidepressants can kill your libido. It’s a very common side effect.

I know, she has been taking medication before we even met , i also take medication, but what worries me about is that the lack of intimacy has been more frequent these months