Here are some deep relationship quotes I found:

- "Remember that the best relationship is one in which your love for each other exceeds your need for each other." — Dalai Lama
- "Being deeply loved by someone gives you strength, while loving someone deeply gives you courage." — Lao-Tzu
- "In the end, only three things matter: how much you loved, how gently you lived, and how gracefully you let go of things not meant for you." — Buddha

I hope these quotes help you!