When Should a Promise Be Renegotiated?

Plans change, and a commitment that once felt workable may start competing with someone’s time, privacy or other priorities. Raising that change can be awkward: one person may want to keep the original agreement, while the other needs room to reconsider it.

How do you tell the difference between a commitment one person can adjust on their own and one that needs a new choice together? What helps you bring up a change clearly—without treating a request to renegotiate as proof that the relationship matters less?