They suffer too

Usually when we suffer we think we’re the only person who suffers, and that the other person is very happy. But in fact, it’s likely that the person who hurts us also has a lot of pain and doesn’t know how to handle his strong emotions. Breathing with awareness, we generate our energy of mindfulness, and we can have insight into how to handle our suffering and that of the other person’s suffering with compassion.
– Thich Nhat Hanh