If you can see a future without me and that doesn't break your heart then we're not doing what I thought we were doing here. - Yup, I won't settle. If you don't want me in your life, I won't beg for you to stay in mine.
Just because others believe you can do no harm does not make you a good person. When you continue to make someone believe they are the issue and watch them self destruct for your own selfish reasons is one of the most cruel things you can do.