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: This is really long so if you read, thank you. 

Firstly I love my cousin, her future husband and we have never had issues in our relationship. I am debating on not attending her wedding because of my sister. 

Backstory: Sister (S) has NPD and I have always been her scapegoat, it’s been an abusive relationship since we were kids. It got really bad when we approached our teens (3 yr age difference, I’m the oldest) my parents were in the middle of a messy divorce and we spent a lot of time with two of my aunts. My aunts very much nurtured these flaws S had and the three of them would pretty much gang up on me. It wasn’t as bad when we were with mom because she suffered with having to have 7 major back surgeries between my ages of 13-19 so that left me to take care of pretty much everything from school things to making sure bills had been paid. After I moved out I didn’t have a lot of interaction with S but she never stopped always trying to get me in trouble or taking any and all attention from me. I was in labor with my first child and she lost her shit on my mom because she had strep throat and mom ended up leaving me while in active labor to go pacify S.

Now I’m in my mid 30’s and mom is living with me, my boyfriend and our three kids because she is 100% disabled. We all have moved to a different state in order to keep our distance with S, even though mom loves her she can only handle her in small doses. In Nov. of last year S found out that I decided to homeschool two of my kids (the youngest needs extra help so he goes to a special private school) S doesn’t think I’m “qualified” to homeschool even though I work with an umbrella school, subscribe to online schooling for the kids and I do everything I’m supposed to do. S reports me for neglect because I’m not qualified. It caused a huge disruption in our lives and scared my daughter. This was the last straw and I cut her out of my life completely. In what I believe to be S’s retaliation for cutting her out she cried to all of mom’s side of the family, whom she has never been close to and voiced her dislike for them, to make me look like the bad guy. None of mom’s family believes that she can be as manipulative and evil as she really. This has been very hard on me and honestly makes me feel a little crazy because I’m questioning whether or not I really am the bad guy. 

Current situation: cousin’s wedding is coming up and while S wouldn’t have attended before I cut her out, she is now going and I really don’t know if I can handle seeing/spending all that time with her in the same room. There is so much hurt that I have pent up that has been done because of S, I’m not sure I can cope. I am in the process of starting therapy to get past this and I should probably add that I have been diagnosed with severe generalized anxiety so that doesn’t help at all. WIBTA if I opt out of the wedding?

not attending cousin's wedding