"Professional wives" are an old story: marry, wait a few years while having "fun", then divorce taking half of everything. These women can live quite well because there is no good way for guys to vet their dates. "Vivian" may well be a made-up name. I know one women who changes her first name like most people change underwear. "Government name"? Given out only when absolutely necessary. She never shows her drivers license unless forced. Or has a forged one.
I strongly believe that the push for digital ID is to stop this sort of masking. (Don't worry, there are men who do this to go after rich widows and divorcees.)