It's quite simple
This woman simply wanted attention. I once knew many years ago someone just like her. Overweight, tomboyish-looking and unattractive, who had never had a boyfriend, who at first started to manipulate me into believing some pretty impressive stuff about her. But I'm a smart cookie and I soon saw through the cracks. This person and Tania are very much alike except that Tania is ten times sharper.
There are many like Tania out there who crave some kind of life that they can't have based on their looks. So they set out to have something that they can have and make it happen. Quite frankly I am surprised any of the people around her bought the story that someone would actually want to marry her. That was red flag number one.
You don't have to be beautiful to attract someone beautiful back. Be honest, show your heart, and you will be surprised at what you can catch.