Name the pause
Use a simple statement about your capacity: “I want to talk about this, and I need a little time to think.” Avoid making a promise about what you will feel later.
A pause can help you think. It becomes easier to trust when the other person knows why you are stepping away and when you plan to return.

A conversation becomes tense. You need quiet before you can respond well; the other person may experience an unexplained exit as abandonment.
Use this as a way to organize your own observations and requests. It cannot tell you what another person thinks or decide what a relationship means.
Use a simple statement about your capacity: “I want to talk about this, and I need a little time to think.” Avoid making a promise about what you will feel later.
Suggest a time you can realistically keep: “Can we come back to it after dinner?” A specific return is more useful than “later” if both people want to continue.
When you return, start with what you want to understand. “What felt hardest about that moment for you?” can reopen the conversation without asking either person to agree immediately.
“I care about this conversation. I need twenty minutes to settle and think. Can we pick it up at 7?”
You can change the words, timing and request to fit your circumstances. A respectful request still leaves the other person free to answer.
A pause is not a tool for controlling when the other person may speak. They can ask for a different time or say that the plan does not work. If either person feels unsafe, prioritize safety and appropriate support.