Do you think your significant other MUST be:
A). Your "soft place to fall" as Dr Phil says. Ie, a source of emotional support, someone who gives you a hug when you're having a crappy day, listens to you moan about your boss or lets you cry and shows empathy when you're going through something really tough.
B) you can't expect one person to be everything in your life and provide you with all your emotional needs. If everything else is good a lack of emotional support is not a dealbreaker. You should rely on friends or family to provide that instead.