We might be talking about something besides what you think we're talking about here. We're not talking romance as in sex, or things that stimulate lust. We're talking about nice, sweet, thoughtful things people do for each other.
Example: "Aww, my husband is so sweet! He got a copy of my car key made just so he could occasionally turn it on and check the gas gauge, and fill it up when it gets low. And all because one time I mentioned I don't like the smell of gasoline."