"I'm nothing without you"
Nothing without you? You've been nothing without that other person for what 17,21, 89 years? Up until the point you met that other person you were nothing. There for, after them you will be nothing. Without them you are nothing?
You rely entirely too much on one person.
You were there before them. Smiled. Laughed. Danced. Had amazing times without them.
So what? You had good times with them. The point is you were fine without them. Happy.
You will be fine again. Happy again.
They do not make you.