You muster your courage and do what you always recommanded your sister to do when her boyfriend should turn out to be toxic... It is muhc scarier with a more fragile and weak body, even as a boy you would have second thoughts. But you do what you have to do and tell him you have to break up.
Turns out, he is pretty upset cause it hurts his ego that YOU broke up wiht him, and all he is concerned is his reputation as a "ral man" rather than being a good boyfriend to you. So you are definately happy taht you, in this life, do not have to be with him. You go home and are greeted by the genie.
The genie reveals that he is proud of you to save your sister from that toxic relationship and that this is what he was actualyl looking for then he swaped your bodies. Since you saved your sister from abuse, he is willing to turn you two back. What do you say?