Sun in Aries knows that he is meant to be first. Life is a challenge to be overcome. Sun in the warrior sign will dominate relationships because his ego (Sun) is fired by the energy of the conqueror. He wants adventure and will be blunt and confrontational. This is not a partner for the sensitive or faint-hearted. If his relationship becomes stale, Sun in Aries may pick a fight to liven things up.
Moon in Aries is a bit of a contradiction. The Moon represents security, but Aries is always pushing for adventure. There is a need to challenge herself (and others) emotionally. Trust in relationships is displayed through the unfettered expression of feelings (including anger), and conflict is a gateway to intimacy. This is crucial to understanding the relationship dynamics of the Moon in Aries partner; the more comfortable she is, the more she’ll let loose. Because the Moon represents inner dynamics, a quieter Sun sign (like Taurus) could initially mask her energy.
Fire meets fire and it’s a match made in some high-speed, over-heated realm that these two call heaven. Sun in Aries’ energy will trigger the Moon partner, releasing all her passion and need for excitement. Moon in Aries will support the Sun’s identity and quests for adventure. As a result, he’ll feel free to be himself in this partnership. The Sun will dominate, but the Moon in Aries will give him a run for his money, sparring with him like a trusted competitor. Conflict should not become overwhelming (unless the Moon partner’s chart has more aggressive aspects). Outsiders may view their squabbles as disruptive, but to this couple it will just be part of loving each other.