Its an ancient, ancient, predictive science but yeah, plenty of wooh practioners simplifying it down to meaningless revenue-raising for themselves these days.
You can't really predict without full natal charts drawn and aspects, nodes, etcetera, charted and compared by a proper, trained and knowledgeable astrologer.
I would love to get mine and my partner's aspected and drawn (probably not the right terminology, I don't profess to be an Astrologer, myself, but I know enough about it to respect the craft, when practised well).
My guy is a very Libran Libran with a Mars in Leo, that shows itself, prominently, at times.
Luckily I am a strong Cappy woman with 5 planets in Sag, and we go together, very, very well. We are a mature Aspie pair, now though, I don't think the relationship would have worked when we were younger.
My last long term partner was a Scorpio, and, just like Linda Goodman says in her Lovers Signs book, we both struggled for power and dominance, it was not a combination for harmony, but in our prime we were a powerful duo, who fronted a band, performing in front of thousand's and were also very virile and produced 7 offspring.
My current partner and I are not supposed to be compatible, according to the Chinese simplified pop Astrology, being a Fire Horse (him) and a Water Rat (me) but, it must be true that Love Conquors All, or, that there is a lot more to that system, as well, because, like I said, we are very in.love and compatible, and it's a 9 years strong relationship.