It’s not easy to share space with someone, even those you love.  We all have different ways of doing things– our own habits, preferences and daily routines.  For example, some of us cannot stand seeing a mess, while others absolutely don’t care if they live in squalor.  Some of us need absolute peace and quiet at times, while others need constant background noise.  Some of us cannot stand the sight of junk food or soda, while others couldn’t care less about the nutritional value of what they consume.  Now, as kids, we have no choice but to put up with our parents or college roommates and some of their disturbing habits, but as we get older and are able to assert our independence, most of us will start to become pickier about the company we keep.  Here are some other factors that play into why dating in your 20’s is completely different than dating in your in your 30’s and older: