According to Bernice Grebner “Mars square North Node: Along with this aspect comes cruelty or a stern nature. This person has sudden erratic bursts of enthusiasm and energy; he blows hot and cold.He usually wants to start new enterprises but loses interest in them when the first challenges are met. It gives impatience, and may disturb the physical vitality, which can cause physical suffering. It gives much sexual energy, sometimes to the point of sexual promiscuity. Squared energy (Mars) doesn’t work well with the South Node area; it leads to excess. However, it does seem to work better with the North Node area where this excess is needed.”
I would think that when you go on a date (5th house) with an open-minded person (Sag) the conversation (3rd house) can suddenly go into direction of gender, and your date may suddenly start talking about her bad experience with men (Mars). And you think and keep hoping she will not hear your thoughts as the date feels ruined to you: “Is it possibly that she just can’t feed the action?” (Mars) Did you ever experience this scenario WG?
Here from SaggiMC’s link, to save you time from scrolling through so many (great) articles:
Your Sagittarius North Node indicates that the greatest rewards for you are in trusting your intuition, and being open and honest about yourself and what you want. Overthinking is problematic for you because you can never have enough information to satisfy your mind. You second-guess yourself and become confused, making it very difficult to make decisions you truly trust. Visualizing the outcome, rather than relying on factual, logical information, works much better for you. You have the gift of manifestation— your beliefs create your reality. Indulging in gossip drains your energy— don’t do it. (by Molly Cliborne Gauthier)
NN square Mars indicates a condition in which the actions and impulses of the natives are likely to be at odds with current social standards. These people tend to express their aggressive tendencies at inappropriate times and places. They may appear to have bad luck, because they lack the ability to act in harmony with the events around them. Others then become irritated, and the natives themselves frustrated.
Mars between one’s past (South Node) and one’s future (North Node). Indicates the necessity to positively accept challenges in life and to take an active attitude towards one’s destiny. Sitting and waiting for opportunities is simply not good enough. There is a need to be outgoing, to not only grasp opportunities but also make them happen. This is an incarnation to develop will, and to use it. The square, being an aspect of incarnation and materialization, points towards an even greater need to achieve in the world in order to find oneself.
Hope this helps.
This aspect can indicate highly strong emotional outbursts. It can actually mean proneness to accidents in sporting events.
I highly recommend North Node Astrology: Rediscovering Your Life Direction and Soul Purpose by Elizabeth Spring This book as essential reading to both students of astrology and professional astrologers. There is a wealth and breadth of information offered that includes more than the title suggests on the Moon’s nodes. Elizabeth Spring’s writing style is conversational, informative, artistic, and provocative, a rare combination.