Yours has a good chance to be a serious relationship from the very start. Somehow, when you met, you knew instinctively that this could easily be a long-term connection, and you might have set right out in making that commitment and settling down together -- which means, of course, that you may have bypassed the fun stages completely! Even if you're just dating, you have a sobering effect on your partner.
If they're in a less stable position in life than you are -- younger, for example, or still in school or with a less than satisfactory income -- you aren't able to help but to offer them plenty of comments and suggestions about how to get on the right track. The problem is, this can come across as criticism, especially since you're already naturally the more authoritative partner. Each of us needs to find our own path in life, and if we're trying to do so while under the scrutiny of someone whose opinion really matters to us, it can make the process that much more difficult. Duty and responsibility weighs heavily in this relationship, which is sometimes difficult to bear. On the other hand, it might come as a great relief to your partner to bond with someone whom they know instinctively that they can trust. They can choose to be open to the advice you give them, and to offer their own valuable perspective in exchange. It all depends on how you to look at it.