Which got us wondering: He wanted a woman who had a solid group of friends, because he felt that he could tell a lot about a woman by the company she keeps. The introduction of that conversation was often awkward and apologetic. There isn't much scientific research about how this practice impacts a long-term relationship, however. Another study, conducted by Illinois State University communications professor Sandra Metts , found that waiting to have sex until after couples said "I love you" had a positive impact on the relationship. That emotional connection is one of the key elements of any relationship, psychotherapist Toni Coleman told Business Insider in We both loved to cook we're both Italian , so we signed up for a weekly pasta-making class together. In , Dean Busby, the director of the school of family life at Brigham Young University, performed a study that suggested that the longer you delay sex — especially if you wait until marriage — the more stable and satisfying your relationship will be. Laughing, walking, exercising together, cooking together, etc. This can be powerful and helpful with the right person, but if you've coupled off with the wrong one, those feelings of attachment can leave you feeling bound to something unhealthy. The chemistry is off the charts, and she hasn't done anything horrific like cry about her ex, or subject you to a photo presentation of cute things her cat has done. Those hours doesn't have to be consecutive, he said — it could be a dinner date plus a weekend afternoon spent together, and so on, until the hours add up. But, will doing so ruin your chances at seeing her again? I told him this off the bat, and he never pressured me to give it up. But if you're stressing out about wanting to wait for a little into your relationship in order to do the deed, you might actually be onto something. The answer is complicated, spanning anywhere from a few dates to a few months after you start to spending time together. But here's what we know about commitment and sex In the early s, Illinois State University communications professor Sandra Metts performed a study to find out whether having an emotional connection — in particular saying "I love you" before having sex — could have a positive impact on a relationship.