RE: How do I fly this plane?
Ahh, here's where the confusion lies. Technically, a torque roll is a 3D maneuver. What you are referencing is called asymmetric propeller loading. Asymmetric propeller loading (p-factor) is most pronounced when the airplane is flying at a slow airspeed, high angle of attack, and high power (like on a go-around). Take a spare propeller and hold it with the blades making a horizontal line. Imagine it's installed on your airplane and look at it from the side. Now tip the prop up like the airplane is climbing. Look carefully at both sides of the prop. What you'll find is that the right hand (descending) blade has a higher angle of attack than the left (ascending) blade. This means that the right blade is "grabbing" more air as it spins. This, in turn, enhances the thrust on the right side. If you have more thrust coming from the right side than the left the airplane will yaw to the left. This is exactly what you experience - the model will yaw left when you pour on the power in this slow, high angle of attack, maneuver. This is corrected with right rudder and NOT aileron.
Keep in mind that there are many other reasons your airplane yaws to the left, this is just the most applicaple effect given the circumstances of your example.