I check girls out occasionally and I check guys out occasionally but I don't really see the point 'cause you'll never really get with 'em especially if your girl (or in my case, guy) is right next to you. It's stupid. Girls get insecure because if you're checking out other girls they feel like..I don't know "What's wrong with me?" "What does she have that I don't?" which leads to "I'M NOT GOOD ENOUGH" which then leads to "YOU BASTARD!"