If there's one word that describes you two together, it's touchy, touchy, touchy! Now, that doesn't have to be a bad thing. Basically, you have a big effect on each other; you naturally stimulate and react to one another on an emotional level that could be rather impulsive.
The troublesome part of this could come in when your partner is being less than sensitive, and inadvertently hurts your feelings. They're naturally more assertive and impassioned than you are -- and, at times, more self-centered. These qualities were quite compelling when the two of you were beginning your courtship, but over time, they'll lead to your partner pushing blindly ahead while you hang back, feeling snubbed or slighted. It won't be anyone's fault: you just set off reactions in each other that is as hard to explain as they are to control. You knew how to push each other's buttons before you even knew each other very well. It could feel as if you've entered each other's lives to force some sort of learning about your past relationships and old hurts -- and that might, in fact, be the best that this relationship can bring you. You could both learn how to live in the present, how to keep from getting irritated at every little thing, and how to allow each other room to be assertive without taking that passion as a threat.