Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I have 4 siblings and I am the second oldest. Our ages are 26, 23, 21, 15, and 13. My sister recently told me her boyfriend is planning to ask my siblings and I for our blessing before he asks our dad. My 21 year old sibling and I told her 'no', and my other siblings didn't really care. Our other siblings don't know this so maybe that's why they don't really care, but the reason we say 'no' is because he has cheated on her 3 times (that we know of) and has beat her to the point where she needed stitches. We suspect she's been beaten more times because of random bruises, but this was the only time she needed/decided to go to the ED. My parents know none of this.

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My sister and her boyfriend have been together for \~5 years? He yells at her when she comes home late after hanging out with US at OUR PARENTS house, doesn't allow her to hang out with her friends (if she does, he has to tag along), doesn't help her care for their animals, never comes to our family gatherings (even before we didn't like him), made them get a shared bank account, didn't help her pay for her tuition which was $600 so she asked me and my boyfriend, cheated on her, beat(s) her, and is an alcoholic who has been trying to sober up since year 2 of their relationship. 

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Our parents have been married since forever and have instilled in us what a healthy relationship should look like. My dad has never hit my mom and he treats us all like princesses and a prince. My sister's boyfriend though... The way he treats her is physically and mentally abusive, yet she can't see it or refuses to believe it. I love her so much and I want her to be happy, but I don't want her to marry a "man" who treats her like that. I really can't see myself giving her boyfriend my blessing, but if he makes her happy, then would I be wrong not to?

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not giving my older sister's boyfriend my 'blessing'