The illusion relative to the idea of the feeling.
I.e. the feeling of love isn't a separate thing from other feelings. It's just different interpretation of the same process but in different contexts.
I.e. there is no love "out there" you don't feel love you feel something that we then choose to interpret as something called love but it's not a thing it's more a loosely defined category.
I take it you are familiar with Dennet's theories. Imo he doesn't really address to problem of consciousness at all, he rejects the phenomenon itself on the grounds that it cannot be verified using behavioristic observations. Searl addresses this in his book The Mystery of Consciousness.