DOOL- Do you think that Vivian will actually kill Melanie?

Like Lawerence said to her (Vivian), he wanted her to kill Melanie instead of Carly because he wanted Carly to feel pain and he didn't want to spend all iternany with her. However, if Vivian does that, she isn't getting Carly out of Bo's life like Victor wants and she is killing Phillips fiance who she has grown fairly close to. What do you think she will do? I think she may try to fool Carly into thinking that melanie is dead somehow or other.