If a girl doesn't dressed up nicely when we meet, does it mean she likes me only as a friend?

We know each other for a few years already because we interact in the same social enviroment but haven't talked much. I know she's got a lot of nice, feminine dresses, but whenever she and I meet she dresses causually.
If a girl doesn't dressed up nicely when we meet, does it mean she likes me only as a friend?
Post Opinion