The Moon in Aries loves hot, direct and with no long run-up. This person rarely tortures themselves over "do they actually like me" — they'll ask outright and move on. At the start of a relationship they go in at full volume, talking about their feelings before the other person has had a chance to get their bearings, and then wondering why everyone else is so slow. Calm, contemplative partners tend to start fidgeting within six months. What this Moon wants is tempo: a little spark of competition, a few things to overcome together, a sense that something is happening.
Conflicts flare quickly and over small things, and they die down just as quickly — provided the partner doesn't turn every flare into a long inquest. I see the same pattern again and again: pair a Moon in Aries with a slower, water-sign Moon, and they can spend years stuck on the same point. The Aries partner has forgotten the row within the hour; the other is still turning the words over a week later. The thing that actually rescues it is a plain agreement made in advance — "in the heat of it I might say something sharp, so don't take it as my final word."
In a long relationship, what the Moon in Aries needs most is room to move. Not freedom in the sense of other partners, but the right to a life of their own — their own work, their own circle, a corner no one else manages. When a partner tries to close the gap too tightly, this person starts to feel short of air and may pick a fight simply to make some. I'd put it this way: people with this placement tend to stay loyal less through daily closeness and more through their ability to keep coming back. They disappear into their interests, their work, a trip away, and they return with more warmth than partners who never left the room. None of this is fixed in stone — it's a pattern worth watching in yourself, not a script you're bound to follow.