No. Astoria is four years younger than Fred and they were never seen to have any interaction in the series.
Fred Weasley died on May 2, 1998 at the Battle of Hogwarts when a wall collapsed on him.
George Weasley married her. Fred Weasley died.
Fred Weasley's love life was never really explored in the books, but he asked Angelina Johnson to the Yule Ball in his sixth year and they appeared to date for a while. Angelina Johnson later married George Weasley, Fred's twin.
Draco Malfoy went to school, and was in the same year as Astoria's older sister Daphne Greengrass. So it is likely that they meet through Daphne, of course as both families were pure-blood they might have known each other.
We never see him with a girlfriend during his years at Hogwarts (although he might have been dating Pansy Parkinson) but in the epilogue he is married to a woman whom he has a son with. During an interview with Melissa Anelli, J.K Rowling stated that it was Astoria Greengrass, the younger sister of Daphne Greengrass.
May 2nd, 1998 marks the date of the Battle of Hogwarts, the death of Fred Weasley whose was killed during, and marks the birth of Victoire Weasley (daughter of Bill and Fleur Weasley) who was named after the victory at the Battle of Hogwarts.
Approximately two years. Draco's date of birth is 5th June 1980 and Astoria was born c.1982
Neville longbottoms date to the Yule Ball was Ginny Weasley
Fred goes on a date with Judy
No
Yes, they do. They are now married with three children.
The exact date of George Weasley marrying Angelina Johnson is unknown. However, we can make an educated estimation: JK Rowling stated in an interview that all of the second generation Weasley children who survived the Second Wizarding War (William, Charles, Percy, George, Ronald, and Ginevra) married in their early- or mid-twenties. Since George is born in 1978, his date of marriage would roughly be anywhere between May 2, 1998 (after the Battle of Hogwarts and when George was 20, in his earliest twenties) and 2006 (when George was 28, in his early late twenties).