Don't ever feel bad for making a decision about your own life that upsets other people. you are not responsible for their happiness. you're responsible for your own happiness. Anyone who wants you to live in misery for their happiness should not be in
The secret to change is to focus all of your energy, not on fighting the past, but on building the new. Socrates I LOVE this. Especially because I have too much of a tendency to obsess over things in the past.