Dirty water

I dreamt that I visited this girl and she wanted to be my girlfriend. Next thing I know, I see her swimming in dirty water and am very afraid to fall into it. She doesn’t see me. Days later, I go to her place and I meet her husband and her retarded child. They tell me that they’re both teachers. I wake up and notice that my heart is beating too fast. It’s 4 a.m. and I can’t go back to sleep.