The Moon represents the emotions and feelings, and the sign and house placement of the Moon indicate the emotional expression and response of any individual. Modern astrology tends to think of the Moon as representing the unconscious and habitual part of the personality.
Water, like the Moon is responsive and adaptable, assuming the shape of any container that it houses. The Moon is the receptacle of experience on a feeling level, and gut level, it digests life’s experiences. The seventh house is the house of others and represents the personal and social relationships we form like: marriage, partnerships and the public. It also defines cooperative interaction with others, and describes how we experience other people and what we unconsciously expect and receive in our relationships.
Those with the Moon in the 7th house are often unconsciously dependent on a partner. The Moon is always hungry for some kind of a response. If the Moon is a reflection of a parter then they may be emotional, caring and even moody. The individual with this placement of the Moon in the horoscope may also attract partners who tend to smother and over-protect them, and some tend to marry young.
The Moon is over-sensitive and over-adaptive to the needs of others in general. However, if the Moon has difficult aspects, then there may be delays and reluctance to enter a relationship may be the case. Planets aspecting the Moon generally describe childhood conditioning, and further define our feeling response.
The nature of the planets aspecting the Moon describe our instinctive response to life as well as what we tend to meet in the emotional sphere. The Moon rules the mother and so her input and psychological impact may be important in the choice of a marital partner.
The Moon here is also very sensitive to public opinion, and has strong feelings for the needs of others. These people often feel "married" to the public, and have a hard time with personal relationships as their true partner is their audience. A good example of this is Marilyn Monroe, she married at aged 15 and had many relationships throughout her life, but it was in front of the public where she really belonged. This can be the lunar position of someone who really knows how to please others.
I knew I belonged to the public and to the world, not because I was talented or even beautiful, but because I had never belonged to anything or anyone else. By Marilyn Monroe
If the Moon is well aspected it is likely that relationships in general will be emotionally fulfilling and there is a natural receptivity with others. If the Moon forms difficult aspects, the individual may experience much change and flux, and be subject to the emotional ebbs and flows of a partnership. Moon in 7th house people craves affectionate gestures, a sympathetic partner and understanding partner.