Sorry, but only two words come to mind. "meal ticket"
If I had been the lover of someone who died subsequent to the 09/11 terrorist attack, there is no way in hell I'd drag their name through the mud for a meal ticket. I would move heaven and earth to take on the responsibility I had assumed in the first place, and leave that person's name and family in tact.
This guy really picked a gem to mess around with.
Must of been some kind of "gem" he may have fathered 2 children by her in a little over 2 years.