the following are general descriptions  of the 3rd and  7th house  the reason for adding it too my post was to open you to the possibility that these two areas could give some added meaning  .numerology which is based on numbers,  these numbers are also  rooted in astrology as well as tarot and many others systems  .all should be explored .   the seven energy vibration  within your your date of birth   can signify troubles in relationships as well as marriages /maintaining balance ect  numbers have universal meanings .  by looking at your birth chart /progressions /transits  in both astrology and numerology many answers can be reviled .  

Third House  777=3

The third house deals with the physical plane area that includes close relatives in general, especially bothers and sisters. Elementary school experiences and our first teachers other than mom and dad. It represents individuals that affect our lives by close proximity. Thus, city life, the community we live in and our neighbors fall under the auspices of the third house. It's also short trips and local modes of transportation such as cars, buses, city rail systems, etc. Since the natural ruler Mercury is such a busy fellow, this house also represents reading, networking, writing, letters, small scale advertising, telephones, radios and any other form of communication. The third house corresponds to Gemini .


Seventh House  

Since the first house represents you; the seventh house being directly opposite the first is other people in general. Look at the seventh house for clues about what other people send out to you based on what you send out via your first house? Committed relationships are found here, along with the contracts and legal obligations which often form them, though there are exceptions to this rule. For instance, best friends form a kind of committed relationship that exists outside of legal documents. Marriage and business partners are legal commitments. Here also, is where we find those who might openly oppose us. Someone who is willing to take you to court to file a lawsuit against you, must do so openly as opposed to behind the scenes. Therefore, lawsuits are a seventh house area. Again, as with legal commitments, this opposition may not always take the form of an actual lawsuit. Traits from your first house that need to be balanced are often acted out by those who are opposite to us. For example; a Libra rising person who is too willing to please, may pull in aggressive or selfish partners, shown by the Aries seventh house cusp. If you repress a particular trait, then that too is often acted out for us by our closest partners.

the book
numerology and the divine triangle  by faith javane and dusty bunker  gives very good insight into how numerology, astrology and tarot can be used together  .

Thanks a lot!
How do you know so much about this?
You might be a professional or a good reader, but thanks a million for explaining.
Thanks Regards
Ria