What do you think of this relationship pairing...

I'm a Sag sun right on the cusp (Dec 21) of Capricorn with a Pisces moon, and my partner of 20 years is a total Capricorn with Libra moon. What upsides and downsides do you see in our match? I know for one thing I often feel lonely in his company like he's not "hearing" me even though I know we love each other to death!