Ever since cave men started doing rock painting with their cave women girlfriend’s neighbours without telling them, there has been an eternal debate about whatactuallyconstitutes cheating.

Some people are adamant that a text counts as cheating, while others, like Ross fromFriends, think anything goes becauseyou were on a break.

The issue arises when two people in a relationship have…differentideas about what constitutes cheating.

Luckily, we can now settle the debate with some cold, hard research.

According to a recent survey of 3,342 Ashley Madison members, emotional cheating feels just as deceitful as physical, as 55% of the respondents believed that forming a deep emotional bond with someone else counted as one of the worst forms of cheating.

The sending of erotic photos and texts were shortly behind, with approximately 44-46% of the respondents believing these counted as cheating.

Surprisingly, about a third of the respondents believed that maintaining an online dating profile is just as bad as spending actual time with an ex partner.

While only 13% believed that fantasising about someone else was cheating, the act of thinking about someone else during sex was considered cheating by 18% of the respondents.

According to sex and relationship therapist Dr Tammy Nelson, peopledecideto cheat.

She explained that a conversation about needs and desires is important.

So we still aren't quite sure whether the cave man was cheating... unless, of course, he was having an emotional affair with the woman in the cave next door.