The person who fits you moves first and explains later. They call with the plan half-built, they decide in restaurants, they treat a free afternoon as something to spend before it expires. Around that kind of momentum you relax, because the one thing you cannot stand — the long, careful hovering before anything happens — simply never occurs.
The cost is friction. An Aries hand does not hover over anything, including sore subjects, and some weeks you will want more patience than they carry. They run hot, apologize fast, and forget the argument before you have finished being right about it.
What this match asks of you is speed of forgiveness. The fire signs do not hold grudges and cannot quite believe anyone else does. Meet the honesty with honesty, let the small collisions stay small, and the momentum is yours to share.