If someone keeps disappointing you again and again, that's on you. Once someone shows they’re all about themselves, it’s time to stop hoping they’ll suddenly morph into a saint. People don’t change just because you want them to. So, stop hitting replay on the disappointment soundtrack and start looking out for yourself. Fool me once, shame on you. Fool me twice—well, you know the rest. Set those boundaries and let them live their self-centered lives while you protect your peace.