Falling in love with your best friend\'s girlfriend or boyfriend is a sin! Keep love aside, even casually flirting with the partner of your best friend can land you in deep trouble. Love triangles lead to jealousy and a lifetime of bitterness amongst great friends. It has often happened that best friends fall for the same girl or boy. And this has been shown in Hollywood movies like My Best Friend\'s Girl . And from our desi flicks, Dostana, De Taali, and Mujhse Dosti Karoge are some examples. Being introduced to the girlfriend or boyfriend of your closest friend is a good thing. But maintaining a safe distance is important. Remember, however close you are to your friend, a little jealousy is always there. No friend would want to see his friend flirting away with his girlfriend. And girls are surely going to throw a tantrum if they see their guy trying to woo their best friend. The best way to avoid all the resentful feelings is to keep away; or to make it even easier, go for double dates! Sending too many text messages, getting coy in the absence of your friend, dropping hints and making unnecessary eye contact are some of the red signals you should be looking out for. Getting too close for clicking pictures is going to get your friend wild with anger and envy. Another outcome of this triangle is the person getting too protective about his girlfriend. And possessiveness almost always leads to a break up. So all the single people out there, maintain a safe distance from your best friend\'s girlfriend/boyfriend.