This story would be greatly improved if the two girls' faces could be significantly distinguished between. Also, this story is kinda similar to Ochazuke Nori's Horror Mansion series Ch. 24, "Plastic Surgery", which features... pretty much the exact same ideas and story beats of jealousy, money, swapping faces through plastic surgery, a boyfriend who switches girls as a result, etc. This does not mean that this is plagiarism, it means that this specific story is trite and overtold.