End of test 1

During the holiday, a group of students consist of 10 students decided to go for a movie after their class gathering. There's 2 couple among them, guy A couple with girl B ; guy C couple with girl D. So the arrangement of the seats have to go such way that guy A n girl B must sit together , and guy C n girl D must sit together , BUT guy A n girl B dont like guy C n girl D so the two couples cant sit next to each other.

i) In how many possible ways the seat of the students can be arranged ?
ii) What if guy C n girl D argued before the movie and they dont want to sit next to each other, But BOTH of them still dont wan to sit with guy A n girl B?

Whahahahaha i hate probability and statistic !!!! XD