Q. I love my partner but the sex is 'bed and bored'. Should I leave?

A. Yes, if the sex was always terrible and he's done nothing to improve on it. But if it used to be good and the relationship is over two years old, what's gone are the pleasurable neurochemicals that flooded your brain when you first fell in love. Evolution programs humans to feel that passion for long enough to have a baby; around two years. After that it's down to us to keep the loving feelings going.