You'll both find it difficult to let each other know how you really feel about each other. Even if you fall deeply in love, there will be some barrier to expressing your true passion. Maybe you'll feel too shy to do so, or maybe you'll worry that your partner doesn't return your feelings, so you'll stay quiet and keep yours in check.
It's also possible that outside circumstances could get in the way of fully, freely expressing your affection, such as if one of you is still in love with someone else when you meet, preventing you from really letting go in this relationship. Your sexual connection may also be strained by this influence; you might find that you're out of sync in this area, with one of you feeling turned on and tuned in when the other isn't in the mood, and vice versa. You'll have to look at the other aspects in your composite chart to get an overall picture of the potential of your relationship, and to get a sense of how much this particular aspect will affect you as a couple. It may be something you can work on together, consciously opening yourselves up to expressing your affectionate feelings in a free and spontaneous way; but it may turn out that the barriers between you are too great to overcome.