The duration of Alisha's story DLC isn't fixed. Some players finish it in less than 2 hours if they rush through, while others take 5 or more hours to fully experience everything it has to offer.
Black-ish is not based on a true story. It's a creation of the show's writers and producers, who came up with the concepts and characters for entertainment purposes.
We don't have enough information to know exactly who Marie is in this story. She could be an ordinary woman with an interesting life, or someone with a special talent or gift.
I'm not sure who Marie specifically is in 'Marie the True Story' without more context. It could be about a real - life individual named Marie, but more details from the story would be needed to accurately define her.
Well, I don't really know the specific Alisha's love story. It could be a very sweet one, like they met at a coffee shop, their eyes met and there was an instant spark. Then they started to date, going to movies and having long walks on the beach.