The most valuable gift you can give to those who love you is the gift of yourself. That is, however, precisely what those who would abuse you will reject: yourself. Thus, there need be no self sacrifice in giving to those who love you. But in giving to those who would abuse you, there is immense self sacrifice.
People who have been abused become reluctant to give of themselves. They give almost anything instead of themselves. But that frustrates the people who love them. For those who love them want precisely what they are most reluctant to give.
When in love, it is most important to be true to yourself. If the other loves you too, then you will give that person what they value most. If the other does not love you, no amount of hiding or changing your true self to suit them is wise.