This is Sinful Colors I Love You, which was in my SC top 5:
"I Love You" is a bit of a strange name for a polish - it always makes me think of Barney even though it's not actually the right shade of purple for the big dinosaur. There are some other old colors of Sinful Colors that have similar names, though, so I think it was something more like an emoji thing, or something like that, instead of a Barney thing. - Aha, Scrangie has pictures of the whole collection (from 2009), and I have three of them. There's no themed collection name but several of the names are in that vein - I Love You, I Miss You, Call Me Later. All About You and Nail Junkie, both of which I have, are also from this collection.
Added: old post about this polish and a newer one.