During this phase, whether or not you have had or are having physical intimacy, the relationship is of the nature of a friendship.
Stage 4: You Fall in Love
When this happens, there is a drastic change in the relationship. Astrologically, this is because the relationship moves to the opposite House from the House of Friendship
One of the things that often happens when you settle down into a commitment with someone is that the relationship begins to feel more like a friendship