Fan Casting Love Martyr in Sort by Tropes

Alice is fully aware of Bob's faults but willingly endures the insults and troubles he dishes out because she believes her unconditional love is strong enough for both of them and/or will eventually reform Bob. What separates the Love Martyr from the Mad Lover is that, in this case, Bob and Alice are in a relationship, albeit a twisted one, and the love is ostensibly mutual, but he pays so little attention to her needs that his "love" for her verges on Informed Ability. Very often, others will ask "What Does She See in Him?" or point out to Alice that Bob is a bad boyfriend, but she invariably ignores or dismisses their concerns. Expect her to say, "But you don't know him like I do."