Learn to stand up for yourself and not depend on your partner for your strength. Again this is coming from us wishing for compassion from others, wishing for strength from others, wishing for someone else's acknowledgement that it is not right. Sometimes we can get people to agree with us and sometimes we can't. Sometimes, as you say, their attachment to the other person is stronger than their capacity to stand up to injustices, they don't have the courage either.
Sometimes we have to find other people who can teach in a way that we can understand for ourselves, what is the correct or skillful thing to do in these instances. To teach us how to stand up for ourselves in a skillful way, and to teach us how to reflect that everything that comes to us we deserve, it's the fruits of the seeds we have sowed. So that we have the courage to deal with our Kamma, and understand that it is arising due to a cause that we have sown for ourselves.
Maybe it is unjust in this present moment, but in the big picture it is not. That's hard to take. However, we can use the D/D method in the sense of injustice. There is a lot of injustice in this world. So by doing the D/D method and thinking of other people who have been wrongly jailed, or who even lose their life for something they never did, it may help us to see that any injustice that happens to us is small in comparison, and help us realize that we may get it again. A bigger mind will help us learn how to deal with these types of Dukkha that arise.
I know sometimes when injustice occurs, if we're not able to explain it to others, we may get lost in anger or aversion towards that other person, and that is very uncomfortable. So a lot of people, even though they may have a right cause or you may be right that it is unjust, if they express it with a lot of anger, normally people will go away from that anger. So we have to be quite skillful and be able to calm ourselves down enough to deal with the anger and let it go. Then we can explain it in a more clear fashion so that the person is able to listen more clearly, rather than just reacting to our aversions. It may be fear, but maybe we are just expressing it with too much anger and the other person is just pulling away from that.
So first deal with our own sense of injustice, learn how to deal with it. Then, if you want some support, as you may need in order to deal with injustice outwardly, if you can explain it to the person whose support you seek in a calm way, they may have some ways to approach it skillfully, something that we haven't thought of before. Especially in a Kalyanamitta situation, they may be able help us to stop being abused, because sometimes injustice arises and it is unjust in the sense that we have to learn how to draw the line sometimes, and we may not know how. And so by explaining the situation in a calm way to someone who has some wisdom about these types of situations, we may find a way of dealing with the situation that can help. But if you come to us with a lot of anger, usually we'll get you to deal with the anger first, because that's the most pressing need at that time, because if we have a difficult situation, we have to have a clearer mind to be able to know what to do.