Refers to the graphical symbol used for direction, indication, or pointing.
I drew an arrow on the map to show the route.
The exit is in the direction of that arrow.
romantic interest; direction of attention
Colloquial use; often in phrases like 矢印が向く (one's interest is directed toward someone) or 矢印が立つ (to become interested in someone romantically).
It's so obvious that you're interested in him.
It seems like I've started to have feelings for that person lately.
The arrow on the map points to the exit.
I drew an arrow on the document and added an explanation.
Please proceed in the direction the arrow shows.
I started having feelings for a senior in the same club.
Recently, it seems her romantic interest has turned toward someone else.