This aspect creates a bond between you that is really beneficial for your whole relationship. Probably from the very start, you felt very close due to this influence and your moods are often in sync. Of course, this could come out in a troublesome way -- if you're feeling grouchy, you could just get on your lover's nerves needlessly!
In general, though, this is a really positive aspect that creates an accord between you and helps soften up any harder, more troublesome aspects that might exist between you. This influence has a lot of long-term potential, because it makes you so mutually dependent in a good way. It is almost as if your minds are growing together, and your emotional life creates pathways for your partner to grow emotionally as well. You are also quite creative together; you could launch a project as a team, or you could just enjoy a deep and diverse bond that you share and have fun with! You are able to help each other through hard times due to this influence; you help your lover to handle any heavy or otherwise difficult feelings, and process them in a healthy way.