You are such different people, on such different trajectories of personal growth, that you may find it hard to relate to one another in an intimate relationship. Look at it this way: Each of you has your own past, your own feelings and your own ways of experiencing the world. Any two people who decide to come together in a relationship have to correlate their pasts, feelings and experiences in order to get along.
You two likely have more trouble doing this with each other than either of you might have with someone else, because you both have difficulty seeing and acknowledging each other. Even if you're highly compatible in other areas, this aspect throws some conflict and disagreement into the mix. At base, your beliefs and values don't match up in a significant way. You each feel frustrated by the things the other identifies as important, and you frequently wonder -- who is this person? How can they think the way they do? The problem with this type of interaction is that, instead of expanding each of your minds and opening you up to new ways of seeing the world, it's more likely to make each of you cling even more stubbornly to your own point of view. But you can have a positive effect on one another, if you both examine yourselves and your values closely and then strive to be accepting of values that are different from your own.