Said one such man, "While I'm on the computer my wife just assumes I'm writing a report for work." Another man said his wife, who knew what he was doing and didn't like it, looked over his shoulder sometimes while he was typing, Mileham said.
Much of the Internet's appeal to married people is the anonymity it guarantees, coupled with the no-touching aspect, which they view as a license to be sexual, Mileham said.
The UF study found an escalating quality to these online contacts.
But one unique couple had such a good time together at IKEA's location in College Park, Md., that they decided to get married there.
'" Rodgers told WTTG-TV/Fox5 that she'd gone to high school in D. with Pittman, but then hadn't see him "for 30 years" before their fateful IKEA date.
Two years later, IKEA donated its store as the couple's wedding venue -- it also provided food (including meatballs) and decorations.
Al Cooper, a leading expert in the field of Internet sexuality and the author of the book "Sex and the Internet: A Guidebook for Clinicians," said Mileham's research is important in helping to understand this increasingly common phenomenon.
"We are hearing from therapists around the country reporting online sexual activity to be a major cause of marital problems," Cooper said.