I used to hate when my friends would greet my girlfriends by telling them how beautiful they were. They would do it right in front of my face. At first, I didn’t think much of it. But as I got older, I noticed a pattern. Every time, without fail, that same girlfriend would end up in bed with that guy as soon as I called it quits with her.
 
Moral of the story, when your friends compliment your girlfriend in front of you, watch them like a hawk. They’ve already exposed themselves. They’ve already marked their target.