Faux feeling Something done to me
Let down
Not a feeling: a thought about what someone did.
‘I think you did not come through on something I was counting on.’
Why it’s not a feeling
Let down tells a story about someone’s reliability: that they failed to come through on something you were counting on. It fits ‘you let me down’, so it points at their action. The feeling under it is usually disappointment, sometimes sadness, and it shows how much the thing mattered to you.
Feelings underneath
Needs
Saying it as a feeling
‘I feel let down.’
When you texted at seven to say you couldn’t help with the move after all, I felt disappointed and sad, because I need support and trust.