Widows/Widowers: 13.6 M in the US, over 11M are women (AAARP)
Divorced: 876,000 yearly (https://www.mckinleyirvin.com)
Lonely: CBS NEWS, 2,000 people surveyed, 72 percent report feeling lonely. (www.cbsnews.com)
Handicapped: According to the US Census Bureau, 56.7 M people (www.census.gov)
People reporting being romance scammed: 4,109 in 2016, lost 25.5 M, 24.8% of the 4,109 reported financial loss (https://www.scamwatch.gov.au)
In 2015, the FBI received 12,509 complaints related to online-dating fraud, with losses of $203.3 million. http://www.rd.com/culture/online-dating-scam/
However, most people do not report being scammed and usually lie about the amount in which they have been scammed.