Perhaps I am overly sensitive to smell, but it happens to me all the time, also in real life: women who are otherwise extremely attractive become repellingly unattractive just based on smell, where the smell is picked up at conversation range.
I personally thought I had a bad sense of smell but some guys have smelled really bad to me at conversation range, so I do have some sense of smell. Some women as well use too many chemicals such as hairspray, etc and smell extremely bad. I don't think they know how badly they smell or maybe they smell ok to many people. Once a woman like that sat next to me while I was eating and it really ruined my appetite. I'm not attracted to women but perhaps with women what you're smelling is the chemicals they use.