If he’s not built for social life and more of a cave dweller, leave him at home. There’s no point in both of you being unhappy. A quick kiss and a by your leave is best.
Remember though, to share your evening adventures when you return home. All being fair in love… and to listen with rapt attention to the description of his evening – watching golf, the “big” game, the biography he is reading/writing, etc. He is still your cave dweller.