Mmmhmm. Go ahead, keep digging yourself deeper...
OTOH, my informant has spoken it every day of her life.
"Your informant" is either having some Chinese fun at your expense or is speaking some local Chinese dialect that is not Mandarin. This is not remotely open to debate. Try Googling "Ai Wewei pronounced" for starters, then listen to some sound files for how Mandarin is pronounced. Or, alternatively, listen to the individual characters in the name here and here.
Why people will insist on opining on languages they've never studied is something I cannot begin to fathom.
