My North Node square his Venus.
This is what I found: " The Venus person might feel that they put most of the effort into the relationship. This combination is sometimes considered an aspect of star-crossed lovers."
Also "North Node is where you are headed in life with the square a disharmonious energy meeting with Venus the planet of love this relationship is not on your path….(There are no absolutes in astrology this is one manifestation) the timing is off for this relationship."
The rest of our synastry chart has very positive aspects, MANY positive aspects but this one is the only one that I don't really understand.