[Nicolas Bournias]

'Leaning' maybe It's not the exact term... This is the situation: We are paired, we brake and I can't catch the apex well, I touch the opponent forcing him to widen the trajectory

I agree with Martin. As you said, you failed to hit the appex and forced your opponent wide and even touched him. To give the position back is the right thing.
The driver that tries to overtake  has the main responsibility to execute the move in a safe and clean manner (that doesnt mean that the other driver has no responsibilities at all).