She could still join the harem if her fiance turns out not to be a good guy or if he dies somehow
After communicating with someone, she kept the communication token, looked at Alex, and said again with a smile on her face, "I've sent a message to my fiance. My fiance has also come to the Wasteland because of some reason. Knowing that I'm here, he told me he'll come and bring me back to the Middle Land."