The event circled months ago meets a person changed by the intervening days.

Plans are made by one version of you and kept by another. The evening you booked in March was chosen by someone with different energy, different worries and a different sense of what a Friday could hold, and the person who actually turns up has been through everything since. Sometimes that person is delighted. Sometimes they are simply honouring a decision that no longer fits, without noticing they are allowed to ask.

Before the next long-standing commitment, check whether you still want it rather than assuming your past self settled the matter. Going gladly, or not going, are both better than going out of obedience.