The seventh house in astrology rules relationships in personal life like marriage or in professional life as in partnerships.
Being just the opposite of the Ascendant house which rules the self, this house rules the people you are associated with in life.
Law suits are also ruled by this house.
With Aries as the 7th house you are likely to attract a partner who is assertive in his/her own way. Your partner would do the fighting for you in life. But that does not mean that you allow your partner to dominate you. Ultimately you shall have the upper hand in the relationship. You like peace and harmony but when conflicts arise you do not mind even severing the relationship once for all. To get along with you, your partner should be willing to meet you halfway along the line.
With Taurus as the 7th house you make a loyal and committed marital partner. But you are found to be very conservative in your choice of partner. Once you have settled down with the love of your life then there would be no turning back, however murkier the relationship gets. You need a partner who is equally stubborn and stable lie yourself. Material success would be the key for your marriage.
With Gemini as the 7th house you like to have variety in your relationships. You like to have a partner who is intelligent and has good mental strength to keep going. You are not too committed to your partner and the relationship would be usually very casual. Your ideal partner would be one who is full of wits and fun to live with. Occasionally there would be friction in the relationship but things shall get back to normal sooner. If your partner would give you your own space in life then the relationship would be bliss.
With Cancer as the 7th house in your natal chart you would be more emotionally tied to your partner in marriage. Sensitivity and feelings would be the keywords in your relationships. Sometimes there would be moodiness in the relationship but it would be changeable. You like being nurtured by your partner in a motherly sense. Marriage completes the emotional you. With the passage of time, your relationships shall strengthen a lot.
With Leo as the 7th house you would be married to a very dominating person in life. You like to equal your partner in ego and self-esteem. There would be a constant struggle for the control of each other in this relationship. Occasional conflicts cannot be ruled out. Marriage though initially is based on love ultimately ends in prestige, position and status in society. Mutual understanding and commitment shall see to that your marriage is on the right track. You would be able to hand over the reins to your partner and get about with your intellectual works.
With Virgo as the 7th house, your partner need to be someone who would be able to complete your self. You would be attracted to a partner who is more practical and who can manage your detailed perfection in all its strength. Usually natives shall have partners who are committed and hard working. You are a tough person to get along for any partner. Hence anyone who would be able to compliment you in the long run would be better. Your marital or business partner need to be detail-oriented and of analytical thoughts for the relationship to keep going.
With Libra as the 7th house you need a partner who plays an important role in your routine life. You like to have a calm and serene love life or married life. You like being admired by your partner for the simplest things in life. You are very judicious in selecting your mate for life. For your relationships to succeed you need to be very diplomatic and tactful. You do not have the ability to see the other person's picture and hence you need to learn to share with your partner. Usually your partner would be a very diplomatic person who knows how to handle you in life.
With Scorpio as the 7th house you need some relationship in your life to keep going. Your personal life and professional life calls for partnership of some sort or the other. You are interested in people who are creative and powerful. Generally partner is powerful and dynamic. You take relationships as a challenge in life. There would be occasional periods of bouts in relationships and most would be based on your possessive nature subduing your partner in his/her ways.
With Sagittarius as your 7th house you would be rather reluctant to get yourself hooked to a relationship as freedom and independence are your keywords. You like to grow your own way and usually marriage comes later on in life. Generally partner would be also a lover of freedom as you are. Marriage would be more for a sort of societal pressure rather than for sex or security in life. There would be good luck and fortune in your partnerships that things usually do not bother you much in a relationship.
With Capricorn as your 7th house, you would be very reserved in entering a partnership deal as in marriage. Marriage in your case is for status and security and not for love. You hate getting into a locked position owing to marriage. You have certain restrictions and responsibilities with regard to relationships in your life. Your partner generally is one who is in need of a support in life. You would behave like a parent figure for your partner and there would be better nurturing. Mutual support would carry the relationship for long.
With Aquarius as your 7th house you need an independence and freedom in relationships. You like your partner to have an individual streak and this is likely to bring troubles in your relations. You need to do what ever you want then and there and nobody can control your moves and actions. This attitude of yours might bring hitches in your marital life. Mutual trust and respect can drive the relationship. You would be more of a friend to your partner than a marital spouse. If you can remain detached from your partner and not so demanding then your marriage shall work.
With Pisces as your 7th house there would be troubles and difficulties in your marital and personal relationships. You have problems reaching out to others and a good partner of yours need to be able to lend his/her shoulder for you to rest on when in trouble. But when the time comes you would be willing to sacrifice even yourself for your partner. Your ideal partner would be one who has great visions and intuitive nature. You would be able to do the rest like organizing things in life. Some natives of this placement like to live singles as there is always the fear of one's partner letting down.