I lack excitement in my life. My girlfriend doesn't share my "lust for life" out of fear or lack of confidence and often it feels like she's holding me back. So did most of my best friends whom I grew up with. Sometimes, I feel like leaving everything behind, including money and just start walking towards east. But I know that would hurt her and my family, and so I don't. Where's the line between doing what you're suppose to do and plain selfishness?