It's perhaps the understatement of the century to say that learning to live with your significant other can present itself with challenges. We all form habits, some of which date back to how we were raised, and it's not until you share space with a partner that all those habits reveal themselves. Suddenly, you wonder if how you do the dishes or get ready for bed makes you incredibly bizarre. Or perhaps you start wondering how you managed to fall for somebody who sleepwalks. Perhaps you're rethi…