Rheya Timeline and Summary

Rheya marries Kelvin.
They fight, he leaves, and she kills herself.
Rheya appears on the space station as a visitor, created by the Solaris ocean. Kelvin shoots her into space.
Another Rheya appears on the station. Kelvin falls in love with her.
Rheya figures out that she is not the original Rheya, and tries to kill herself, but she regenerates.
Eventually the scientists figure out how to dispatch the visitors, and Rheya gets Snow to kill her.