Several participants indicated they divulged more about themselves to online partners than to their wives or husbands.
"We started chatting about life, our marriage, what we like to eat, what sexual positions we like the best," wrote one man to Mileham.
But some used this form of effortless escapism while their spouse was in the room, she said.
The UF study found an escalating quality to these online contacts.
One 66-year-old man ended up having 13 affairs this way, she said.
Research shows that more males than females use chat rooms, said Mileham, who found it difficult to get women to respond to her survey.
I am a 40 year-old married white male who has been married to my wife for 12 years (together for 16) and have always been faithful to her but circumstances have forced me to look for a woman on the side. When I first met my wife, she had a voracious appetite for sex and since my drive was also strong we had an amazing sex life right from the beginning of our relationship.
Over the course of our marriage, I've seen her interest in sex decline gradually to the point where she doesn't even have an interest anymore.
Many reported that what started as innocent, friendly exchanges progressed quickly to strong desires for sexual relationships, she said.