The survey answers some of those relationship questions and more - maybe more than some want to know.
The research revealed that 40 percent of people surveyed have sex three to four times a week.
And among the happiest couples of those surveyed, more than a quarter of them said they were keeping secrets from their partner.
"Sometimes, you know, people won't disclose that they spent - you know [for example] $500 on clothes. And that could be considered a secret," Clinical Psychologist Dr. Howard Markman said. "That's different than if you're having, you know, an affair, and you're lying about it. That's a giant secret. And that's going to be something that kills a relationship."
One statistic that may surprise some is that the survey revealed that nearly 29 percent of women and 44 percent of men said that they would like more romance from their partner.
"Men are really more romantic in my opinion than women," Markman said. "But, we don't really show that often enough. We don't express our love in ways that are meaningful."
Forty eight percent of the men surveyed said they have fallen in love at first sight - compared to only 28 percent of the women.
Markman says this statistic circles back to the romance statistic.
"Love at first sight is very common," Markman added. "Men do it more than women because I think we're just more romantic and we like that idea."
"Now does it last?" Markman asked. "Some data suggests that couples fall in love at first sight last just as long as other types of falling in love."
The study is included in a book called the Normal Bar, which will be released Feb. 5.
But before you go out and buy it to find out if your relationship is normal, Markman, who teaches at DU, cautions against comparing yourself to other couples.
"When you start comparing yourselves to other couples, other people - it's a losing situation," Markman said. "What you want to do is kind of focus on your own relationship. 'What can I do right now? What can I do today to make my relationship as positive, as healthy [as] it can be?'"
Markman offered his advice for a happy marriage.
"Make sure that you handle the inevitable negatives [and] that you are able to talk about problems without fighting," Markman said emphatically. "Make sure that you compliment your partner [and] that you keep the positive connections. Have fun. And when you're having fun, making love, going out on a date, make sure that's not a time to deal with issues."
Click here to read the USA article: "Sex survey: What's 'normal' for couples?
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