The context of the following conversation is While others were fairly sure of their decision, Aubrey's idea caused a shadow of doubt in their mind.:
Aubrey says I thought my idea was pretty great..
The friend responds Wasn't it good?.
Aubrey responds It was but others had some doubt in their mind..
The friend responds What about other people's ideas?.
Aubrey responds They were sure about their decision, but not sure about my idea..