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Written by:  Courtney Hardwick in Relationships

They say ‘once a cheater, always a cheater,’ but the truth is there are a lot of reasons people cheat on their significant other. Some people cheat once, and never do it again, while others are serial cheaters. One thing is for sure though– cheating damages relationships, a lot of the time beyond repair. So, why do people do it, even when they know the consequences? Some people have to learn the hard way.

Some argue that human beings aren’t built for monogamy, while others think that’s just an excuse to rationalize bad behavior. But unconventional arrangements like open relationships are on the rise, so maybe one day cheating won’t be the guaranteed relationship killer it has been in the past. For now, here are 15 things you might not have known about infidelity.

15. There are different kinds of love

According to science, there are three different kinds of love. Sex drive refers to how often a person wants sex, romantic love is what makes us direct all our attention towards one person, and attachment is about the level of security we feels towards someone that motivates us to stay with them long term. That means it’s possible for someone to feel romantic love for one person and still be sexually attracted to someone else. Just because someone cheats on their long term partner doesn’t mean they don’t still love them. Which makes motivations for cheating and the consequences of an affair a lot more complicated than you think it is.

14. Rock n’ roll fans are most likely to cheat

Not to make generalizations, but researchers in the UK  found that 41% of people who have cheated list rock music as their favorite genre. Coming in next was pop music at 16%, country music at 11%, classical music at 7%, and hip hop at 2%. Of course, that’s only one tiny aspect of someone’s personality, and it should be taken with a grain of salt. Unless they are the groupie type, music preference probably isn’t a solid indication of a cheater.

13. When a woman cheats, it’s more likely to end the relationship