These two are instantly attracted, as Mars rules Aries and Venus rules Taurus, which makes them textbook perfect, in the sense that Mars wants to dominate Venus and Venus wants to submit to Mars, astrologer Valerie Mesa explained to POPSUGAR. "However, Taurus is in for a rude awakening with Aries, considering this fire sign is nowhere near as faithful as Taurus," she said. This causes them to really disagree on monogamy and loyalty as hard values in the relationship, putting them on two different pages.