A sweet husband washes his wife's car when she is sick in bed, but REALLY wanted to wash her car that day.
A sweet husband brings home little surprises/treats out of the blue because he thought about his wife during the day.
A sweet husband lets his wife control the radio when he'd rather listen to anything but the Hits station.
A sweet husband bakes (& decorates!) his wife's best friend a cookie cake for her birthday, when said wife was sick over the weekend and wasn't able to (the same weekend he washed her car).
(I SWEAR Ryan made this.)
That's what sweet husbands do. That's what my husband does.