She’s Gotta Have It

"She’s Gotta Have It" is the title of a movie. The description below is from https://en.wikipedia.org/wiki/She%27s_Gotta_Have_It about its plot. Can anybody understand what the title of this movie (She’s Gotta Have It) mean? I know that "She’s Gotta Have It" means “She has got to have it”. I want to know what "She has got to have it" means. What is it referring to in regard to the context of the movie? Does it mean "she must have something (something must belong to her)"? But, what is this something"?

Wikipedia:

"Nola Darling is a young, attractive Brooklynite who juggles three suitors: the polite and well-meaning Jamie Overstreet; the self-obsessed model Greer Childs; and the immature, motor-mouthed Mars Blackmon. Nola is attracted to the best in each of them, but refuses to commit to any of them, cherishing her personal freedom instead, while each man wants her for himself. Her carefree, sexually liberated lifestyle ultimately comes to an end when her three male suitors meet and compare notes on Nola. While Greer justifies Nola's callous behavior by claiming that she sees the three not as individuals but as a collective, Jamie and Mars become bitter over how little Nola cares for all three men. Realizing that Greer and Mars are too scared of losing Nola to force her to choose one of them, Jamie tells her that she must choose a single lover..."