I'm a Gemini sun, Leo moon, Taurus rising, with 7 planets in my chart ruled by Mercury (4 Gem, 3 Vir), so I look for a woman who can fire me up in 3 ways: intellectually, physically, and spiritually (scorpio on DSC). Thus, most of my major relationships tend to be karmic.
The first that got me on a major spiritual path was a Virgo sun, Gemini moon, Pisces ASC, with her Sun directly trine my ASC and Moon in the middle of my Merc/Jup/Sun stellium. Very powerful, life changing relationship even though it only lasted a few short months and was very chaotic.
My 1st wife was Cap sun, Cancer moon (in opposition), and Libra rising. We made great friends but as we soon found out, a not-so-hot couple. Her Sun-Moon opposition drove me crazy, she could cry at the drop of a hat over a commercial on TV. I guess my Gemini detachment had difficulty with that at the time. I'm sure I could find it endearing now but at 25 it was a bit much. That lasted 5 years.
My 2nd wife was also a Cap sun (like that Sun stability I guess), Taurus Moon, and Scorpio rising. Now THAT was a major karmic relationship, with our ASC/DSC in mutual reception, her Moon on my ASC. She is bipolar, which caused all sorts of issues as she wouldn't take any meds for it, and I think she was a lot more psychic than she let on (she was terrifed of spiritual stuff). There were tons of past life issues there for both of us, and they could have been overcome but it takes two to tango. It lasted 4 years on, 3 years off.
Next major was Taurus sun, Aquarius moon, Gemini rising. We got on great, and although our Moons in opposition caused some issues, we were crazy about each other. Unfortunately, both of us were going through rough separations/divorces and the timing was terrible. At another time, I'm sure we would have been married (many novile aspects to composite node, MC and vertex).
Next major is a Aries sun, Aries Moon, Virgo rising (hows that for throwing dirt in a fire?). We make great friends and a not-too bad couple, but so far it seems best we work for now as great friends rather than a couple. We've made a pact that if we're both retired and nothing is happening with either of us romantically, we'll get back together as geezers and have one of those live-in-share-social-security-benefits relationships.
Next major drove me nuts. The Aquarius Sun/Leo Moon thing was great, Capricorn rising. What drove me nuts was the Mercury in Pisces. We got along great, had fun togther, the sex was awesome, but couldn't communicate out of a wet paper bag. Eventually I had to get away from that, I need intellectual stimulation as well as the rest.
My current sweetie is a Virgo Sun, Scorpio Moon, Leo rising, very intense. We get along great, communicate, sex is good, our only issues arise from our composite chart, another very karmic relationship (we both remember the past life in question). Still working on things, been together for 8 months, many chapters yet to write. With her Moon on my DSC and my Moon on her ASC, it's been interesting.
Out of all the many relationships I've had, very few had the novile aspects to the MC, node, and vertex in the composite chart. Out of the four that did, I married two, plan to marry a third, and the fourth I would have had both our timing been better. Even the one that I'm great friends with and have the geezer compact with, we don't have the novile aspects. I think that may be a good indicator of karmic marriage potentiality.