My passed fiancee was sleeping beside me. I tried to talk to her. I tried to wake her up. But she didn't talk nor wake up
This is a deeply emotional and personal dream, likely reflective of your grief and longing for your passed fiancée. The dream may be a representation of your desire to communicate with her or see her once again. It's possible that you feel as though you were unable to say goodbye or express all that you wanted to before she passed.
Alternatively, this dream could be a representation of a fear or worry that you have about not being able to connect with someone important to you. This could be related to a current relationship or a fear of loss in the future.
Overall, this dream may be a reflection of the complex emotions you are experiencing as you process your grief and come to terms with your loss. It's important to take time to honor your emotions and seek support if needed.