When you spend a lot of time with your significant other, it's easy for him or her to know the ins and outs of your personality and what it is that makes you tick. Often times one partner can end up knowing the other better than they know themselves.
Body language is a very powerful way to communicate, especially when you're upset about something. I'm always shocked when the people I'm closest with know there's something wrong even when I don't vocalize it. Has that ever happened to you? Ladies, do tell, does your significant other know when you're mad or sad before you even tell him?