Hmm, well based on her thing...I'd say changing yours to single is fair.
Again, why would you change your status to in a relationship already? In a couple months...sure. What does leaving it at single/complicated/whatever for a month or two hurt?
Even if she has heard rumors...still give her the courtesy of talking to her. Maybe even give her a heads up that you are going to change your status.
Weird that they don't have those options on there.
Fair enough, my NG told me to wait if I want that she understands the entire sich.. i went and did it anyways. and ya weird those options don't exist