If your little brother does something that you don’t like, you don’t keep your mouth shut about it, right? Of course not! You tell him straight out that he did something you didn’t like and to cut it out. And while we don’t advocate talking to your partner in the same way you’d talk to your little brother, the message is the same: you have to tell your partner what you’re thinking. You can’t expect him/her to be a mind reader—and they can’t expect YOU to read THEIR mind either. Telling your partner that you want them at opening night of the play you’re in (even though you...