We often treat a boundary as a door closing. A refusal. A small withdrawal of love.
Sometimes it is the first place intimacy becomes honest.
But a boundary is really a form of information. It tells the other person where you actually are, rather than where you think you should be.
Without it, closeness becomes a guessing game. We merge and blur and hope, and slowly we lose track of where we end and the other begins.
A boundary returns us to ourselves. And only a self that is present can truly meet another. In that sense, the boundary is not the end of intimacy. It is often where honesty begins.
This is not about building walls. It is about becoming legible. When you can say your no clearly, your yes becomes trustworthy too.