Neither of you gets upset when one of you dances or flirts with other people.
You have no problem sharing him on the dance floor at a wedding. In fact, you love watching him bust a move with others—it makes you smile. "Flirting is a natural behavior that's about generating energy," says Greer. "It doesn't bother you because you both know you're still into each other and find the other desirable." Besides, you know that at the end of the night he's going home with you!