a dream

Today I had a dream I am coming back to grandmother's house... I saw my aunt there and many other people. As usual. They invited me to have a dinner with them but I refused and went to another room. There I saw a mirrow and a razor blaze. I looked at myself and started snipping off one lock by another. I remember it was very difficult because my hair was rather thick.I cut off some locks and didnt like the way I looked and just decided to make a new haircut. Its surprising but I even remember this haircut. %)
I told about this dream to my Mum. According to her, this means I will have to go to grandma's house soon but I will not want to. Cutting my hair means "cutting off" the road. Blocking.
However, I've looked at the book of dream interpretations and it said cutting hair means I will be betrayed. Cheated on.
I am not expecting unfaithfullness from him, but if this ever happens, I prefer not to to know about it.He is free to do what he wants...