as someone whose dreams predict the future, it could be either your ideal woman and it isn't real, or the future. how to tell, do you tend to have reoccuring dreams about something and they come true? example, when i was a kid [8-10] i would have a dream at least once a month i went swimming with my mom and my sister in a strange pool and nearly drowned. the dream stopped because it happeend, my parents devorsed and after we moved my mom took us swimming, the pool was identicle in every way to my dream. my near drowning mind you didn't happen until 3 years later. [another one is normally if i dream of a person or animal dies, one week later they do]
my point is, have you ever had a dream like that? very powerful, very vivid, and the exact same dreams occurs regularily? if that happens, then it's probably fate, but i'm about 95% certain she's just your dream girl and isn't real.