I cut my sister off about 6 years ago completely. I have written her maybe 10 Emails and letters over that time, to get across what i wanted to say. She always thought she was God's gift, little miss perfect, pinned blame on me regularly, ignored me our entire childhood, looked down on me, and dominated with her incessant babbling and intellectual take on things. My best advice to all of you, if you want no contact with your sister or brother or family member, and that is your gut feeling, you may as well stick to it. If you let someone back into your life in a superficial or minor way who is already toxic, you are just opening the floodgates to frustration and anger that will still reside under the surface. It all depends on the person, I hate my sister for robbing me of time i needed from my parents as a child, and making me feel invisible. If your sibling did not do anything too severe, I recommend trying to work things out. If you are just fuming every time you think of a person, and what they represent to you, why the freak would you want that God damn person in your life. I also do recommend sending E-mails or texts or facebook messages to that sibling explaining semi-politely why you think they wronged you. Not so you win, but so that no matter what happens, you said your peace and have that weight off your shoulders. My sister now, over the last few months, I sent her about 3 or 4 packages with a ton of gifts, hundreds of dollars and mixed in cards and E-mails criticizing her (and even her yuppie husband's) past treatment of me (which she deserved) It is like the equivalent of giving someone a beautiful birthday cake with their name written into it, but with razor blades inside. My point is, if you mix in gifts, or compliments, or butt-kissing, you can get a lot further with destroying someone than you would if you just blatantly trash someone. Very effective and makes more of a statement that way. The thing is, it has to be warranted, for you to say or do what you want. And at some point, you have to let it go. You can't just send hate towards someone forever. That is why if you do attack someone verbally, I would get out EVERYTHING you want to say, because you never may get that chance again, you know