If I’m interpreting your images correctly (always doubtful…) it looks like you need to re-position the anchor point of your arrow and rotate it to make it line up with the oval.
But if the plan is to have the arrow and line trace the oval, simply pasting the position info into the arrow won’t give you that effect. You might be better off adding a stroke to the oval path to create the line and just pasting the position info into the arrowhead alone, then align the arrowhead to the path.