They might have said the 3 letter word but you know the mean NO! Maybe it’s best they don’t agree with you because they’re “yes” is filled with such hostility that your not really sure how they are going to react next. They might actually do what they agreed to now but make sure that it hurts you more in the long term. No is at least final and you can just do it yourself with a Yes like the one above maybe it’s best to conclude that it is a no and go in such course.