The Moon is the most important 'planet' in relationships. The Moon represents deep security needs, and it is difficult to be with with someone who does not offer us what our Moon needs. Positive Moon compatibility will show two people who feel "at home" with one another, and instinctively care for one another. It's like being family. That's why it's the most important planet in synastry. If you want to spend the rest of your life sleeping in the same bed as someone else, you obviously need to feel like family to one another.
Moon Trine Mars
You will have a very lively romantic relationship. You are instinctively drawn to each other, passionate physical and emotional responses to one another will always be a part of your relationship. You inspire a mutual sense of exuberance, a feeling of energy and vitality based upon your proximity. When the Moon person is trine the Mars person, they will be very interested in touching; you stimulate your partners instinctive assertive sexuality. You are likely to take risks, initiate new ventures together and be more cooperative than competitive when it comes to sharing enthusiasms.