I agree love is an abused term but not for the same reason. Mostly I just think it's a leaky and undefined category of feelings that isn't really distinct from "liking a lot". I agree it's different than lust, but only in that lust doesn't necessarily include anything other than physical attraction. I think it's mostly a waste of time to wonder whether or not you're really in love with your partner in the same way it's a waste of time to wonder whether obesity is really a disease.