People who suffered abuse—either physical or emotional, and either from family or past romantic partners—can still have successful relationships. Elder abuse is another category where mental abuse can often be found. One of the ways you can begin to cope and heal from the abuse is by learning to recognize the effects of emotional and psychological abuse, and the next step is to seek professional help as this kind of abuse rarely occurs as a single event.
What you can do Offering to attend therapy with your partner, or even just going on your own as an act of solidarity, can go a long way. As much as you want to express your love, people who were emotionally abused also want to express their deepest longing — they want to express their love and know that they will be accepted and loved in return! Keep in mind that if she is opening up to you in any way, it is because she has deemed you worthy of her trust.