I’ve been thinking about this a lot, too. I still insist on calling my books “chick lit” even though there are a lot of romance-novel tropes in them – partly because there are too many characters and sprawling themes, and not enough explicit sex. (Most of the chick-lit books I’ve read have their main characters fall into bed without much detail… which works for me, because I hate writing sex scenes for the most part.)
Then again, I’m also the person who insists on classifying her books “satire” because they used to be crowded with Mary Sues. Maybe I should go all meta for my next book by writing satire *about* chick lit?