This is either an emotional restoration dream, triggered by concerns that you have for your friend, or, this dream is a revelation of what is going on in the life of your friend. It appears that there are some cheating and dishonesty and unfaithful actions going on. It also appears that your friend is living in a state of denial. It is also evident that this situation is draining your friend emotionally as symbolized by the weight loss and the skinny face.
To be certain whether this is just your emotions of concern triggering an emotional restoration dream or whether this is spiritual insight or a revelation, you will have to contact your friend, tell her about your dream and also pray for her and support her.
Explain to her that God is concerned about her well-being and that is why He revealed the situation to you. It is so that you can support her.