You are able to build a really strong emotional bond. You're in sync a lot of the time when it comes to needs for intimacy and independence. When your partner wants to be close, you're already feeling gooey and sentimental.
When they want to spend some time alone, you feel ready for the same thing, and are able to create space for each other. What a wonderful balance! Better yet, you often don't have to verbalize these needs, because your bond is intuitive. You just pick up on the other's emotional rhythm or mood of the moment and treat it with respect. This kind of dependence and intuitive interaction is obviously good for both of you, unless it begins to verge into codependency. As long as you maintain your individuality within the relationship, and appreciate but don't demand your partner's understanding of your inner feelings, things will run smoothly between you. If you start to depend on each other too much and to need that emotional support, instead of just appreciating that it's there for you, that's when trouble could start. If you get to the point where you feel secure only when you're together, that will be a sign that things have gone too far. Other than that, the support between you is wonderful for both of you.