I know this is a bit late....but how about the two of you having 'sleepovers' in her room? I don't expect that it will completely solve the problem but it might help her to feel a little more comfortable in there.... I'm not sure if she falls asleep in your bed without you (i.e. before you go to bed) but perhaps, if she does, you could explain to her that she needs to go to sleep in her room (once she is comfortable in there) and that in x number of hours you will come in with her? Maybe you could start stretching this out so that you take longer and longer until you come in OR, if she doesn't get to sleep without you perhaps you could negotiate with her that at a certain point in the night you will go to your bed???

Just some ideas...I'm no expert.... I hope everything sorts itself out for you.