Awful movie! Very good acting, but the premise is mostly about "Bud" trying to have sex with "Deanie", but she won't let him without getting married first. (and rightfully so) He gets mad about it. (She should tell him to get lost, but she doesn't. Instead she becomes obsessed with him and ends up in a mental institution.Why? They barely talk to each other. They don't know anything about each other. They have nothing in common, except kissing)
So, Bud tells his jackass father he wants to marry her. (really so he can finally have sex with her) Deanie tried dating another man, but he wanted the same thing as Bud.
So, while Deanie is in a mental institution, Bud goes on with his life, and goes against his father's wishes to stay in school. He gets married to a woman he met at a restaurant, and lives on a dirt poor farm. He's living life his way, not his father's way. (I can't understand why he chooses to live in poverty when he grew up with a wealthy family?)
So anyway, when Deanie gets out of the mental institution after two and a half years, she has plans to get married. Her friends take her out to visit Bud. When Deanie and Bud meet, they barely talk to each other, as usual. She gracefully meets his wife and baby. She doesn't seem upset or jealous about it. (Maybe that's the moral of the story. She can go on with her life without Bud)
So, they end up saying goodbye to each other. Then the movie ends with her friends daring to ask her if she still loves him. (I don't think Bud and Deanie ever really loved each other. It felt like love, but it was really lust. They were very young and only physically attracted to each other. We've all been down that road before)
Anyway, she didn't answer her friends question about if she still loves him. Instead, she recalled an excerpt from a book she read in school about "Splendor in the grass". The end