I'd love a big family and a flock of friends, but am not loud myself and its even harder to make friends when your other half makes no effort, it's a hindrance.
Your post really resonates with me @Fourfurryfeet
DH is very much an introvert, but I also think that he ticks boxes for some ND traits. He is also just unsociable. I like seeing people and being with them, and he is a reluctant socialiser. He has got worse as he got older. I'm sad that I have only once seen my family at Christmas in recent years because DH is such an introvert and so he always gets the Christmas he wants, whereas DD and I like to visit family. Our Christmasses are always quiet and boring because we always do what DH wants to do - not see anyone and not socialise. By the end of the Christmas break I am climbing the walls with boredom. We live 4 hours away from my sister so it isn't doable in a day trip.
He is OK with socialising in small groups with people he knows well, and nearly always when alcohol is involved. He hates parties and large gatherings. He left a funeral wake early because he felt “crowded in”. He is not a “joiner in” type of person, and his dislike for authority meant hated working for someone else, so he set up his own consultancy business.
Our social life is pretty quiet so I decided that I would climb the walls with cabin fever unless I did something about it. I have joined a couple of local groups, one being a charity. DH refuses to come to any of the charity social functions, so when everyone else takes their partner I go alone.
We don't live near either family so a visit always involves a stay. The one time we did spend Christmas with my sister and her family we stayed in a Premier Inn nearby, but it meant that I had to do all the driving as DH can't cope with driving anywhere unfamiliar even with a satnav.