Midpoints? Please help!?

The Venus/Mars are most relevant in ual relationship and attraction. Any aspects between Venus/Mars, Sun/Venus or Moon/Venus are the ideal onesand any planets near the 4 angles of the chart and their aspects are also very important. As for the duration of the relationship, check the house position of Saturn and its aspects as this is critical because it can tell about the strength and weaknesses of a relationship. In your case, if HIS Sun conjuncts your Venus/Mars, obviously, he is more attracted.