If my cousin very strongly implied, but never outright said, that her mother (my aunt) used to abuse her, but they still maintain a relationship and I haven't been asked to do anything, what is my responsibility?
Offering general support is always good, tbh, especially if she knows you also have a history of abuse. Like, "I've gone through f'd up things too, if you ever wanna unpack" and leave it up to her. The possibility that her mother's behaviour has improved and left her in a kind of limbo about it is very real, and she might want to steer away from conceptualising it as abuse to maintain the relationship. Communicating that no matter is going on right now, it's okay to be messed up about what she did, is very important.
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