A fake Classic that doesn't make sense

Rating: 4/10 (30 May 2015)

I am huge movie buff and usually am very kind to all films, but have to point out the fact that the film doesn't make any sense or have any serious character development.
The Story is extremely fast and inconsistent. We meet Ben (Hoffman) who is shown to be a shy and an introvert,He just graduated and is a prize student with a brilliant future. At his Celebration party Mrs. Robinson a family friend asks Ben to take her home, there she tries to seduce this extremely shy, introverted virgin. She doesn't succeed but plant the idea and Ben falls for it. They began to have an affair. Meanwhile Mr.Robinson is trying to set up his daughter (who doesn't have many friends) with Ben, who has no interest her, then when his parents also get involved he decides to amuse his parents and not get in an uncomfortable situation with his mistress and his parents. At the same time Mrs. Robinson states very clearly that she doesn't want him to date her daughter, but pushes to more of a reason then just not sharing her young meat with her daughter. After putting Elaine through the worst date he apologizes and falls for her in a matter of seconds, as she does for him. Then the whole story falls apart, Ben goes from Introvert to an extrovert, Elaine goes from a shy and innocent "Pure" like girl goes to a socially confident woman who has friends and a boyfriend. Ben after losing Elaine to the truth, decides his only choice is to marry her. Elaine who had 1 date with Ben and falls in love with him, doesn't tell him about her other boyfriend who proposed to her. When Elaine's parents find out about Ben's plan to marry her, they decide to marry her off to her boyfriend the next day. Question implies, why did Elaine fall for a Jerk? a guy who was having an affair with a married woman. and later a guy who was accused of raping her mother. But bigger question is why did she agree to getting married to the other guy and going through with it, if she loved Ben?
The film might be a classic due to its Acting, Dustin Hoffman was brilliant as a 20-21 year old shy graduate student, and more importantly Anne Bancroft was simply amazing as the much older mother, (she is actually only 6 years older the Hoffman) but the story lacked gravity and emotion, it lacked logic and timing. So this was just a fake classic that people loved for the idea of being forgiven and the idea that true love conquers all.