7. You're A Boyfriend Stealer
Don't be that girl who takes the 'there's no ring on the finger... challenge accepted' approach when it comes to finding a match. If you know he has a girlfriend then just leave him well enough alone, especially if that girlfriend is one of your friends. That is just like, the rules of feminism. If you're feeling a bit lonely or upset about being single, just watch an episode of CatFish and you'll feel a lot better about yourself. Don't go after someone who is already taken to create drama because you'll have no interest in staying with them long term and even if you do, the start of your relationship will have been based on lust and lies and someone has their heart broken.