Colleen, as the others have said, you are not responsible. Look at the words your aunt said. She said, "I don't need you guys in my life." Not, "you guys aren't worthy to be in my life." This is about her. As a lot of know, bipolar is exactly that--both poles of the spectrum. Not seeing things correctly. You have made significant changes in your life recently and they are all positive. Please do not let her instability and inability to see how hurtful words are affect your progress. You wanted honesty, so honestly I think 1) she needs help and 2) it will be healthier for you to tell her you love her, you'll miss her, you hope she will be safe, but until she realizes how hurtful she is being, you cannot have her in your life. It's time to stand up straight up and tall and proud of what you've done in your life and not let her upset you like that. More to the point than her not needing you, is you not needing that kind of treatment. You can say all that with love and respect and once she returns the love and respect you can move on with a relationship. You know I'm here for you.