You have a serious effect on your lover, literally. When you two get together, you focus on serious matters. You're thorough in your thought processes together; if you have an issue to talk out, you do so with serious intentions to get past the obstacle and never let it happen again.
This is a lot of pressure for a romance, but if your relationship is a long-term one, you're both glad for this influence, because it helps to ensure that you two always communicate well and carefully, and that you're considerate of each other whenever problems arise. You don't just help each other with problems in your relationship; you also help your partner deal with outside issues in their life, offering advice on anything from their career to their friendships to their family relationships. Other more difficult aspects to your relationship are aided by this generally positive one, because of the good communication it fosters. Any issues that arise find real solutions; any ideas either of you has is either grounded in a stable reality, or discarded quickly as unusable. You work well together; this aspect supports a business or creative relationship as well as a romantic one. Practical experience, knowledge and advice are a focus between you, and you both try hard to put your best effort forward in this relationship.