Dream of died, mad, mother, person

In my dream I have to pass through what appeared to be a toll tower on a bridge. On one side of the bridge was a railroad with a train. There were "captains" inside the toll tower that allowed me to walk through the front door and out a side door. However, in the tower was a hatch in the wall that will take me to the same place as the side door, but it was a more difficult way to do so. Passing through the side door, I found myself with three people. Two of them are currently living and one has died recently of suicide but still alive in the dream. The two currently living are the mother and sister of the other person. We ate dinner. Then the myself and the one who is actually dead began to walk. I could feel her behind me. I told her I love you like I always did on our walks before her suicide. Her response was mumbled at first, then clearly she said "Tears." I got a little mad hoping to hear I love you back like she always did. She then said "Why isn't that good enough for you?" Her face was beautiful, years younger. She was 45 when she died.