Affection after marriage

recently I've been thinking about marriage.

relationships that are outside of marriage aren't allowed in my religion or safe in my country and I never fell in love anyway.

so if I ever got married, obviously it would be traditional, to a person I barely know and I'll be expected to hug him /kiss him/ do stuff with him

but I'm not an affectionate person, the affection in my family is dry as heck I only get hugged on my birthday and when I get good grades and that's literally it. I haven't even hugged any of sisters in years, I feel like if I did get married, I won't even be able to fake stuff like that, and then it will just be long boring life.