Rachel was perfect for him. Cute, not gorgeous (exactly like him)
Wholesome, not phony (again, like him) and she's Jewish (just like him). A second grade teacher with a personality that shines. They were perfect for one another. So what does he do? He goes for the glamour (just like everyone else on these "Average" shows). SHEESH! Samantha is totally into herself, you could see it when they were together. They won't last. They'll be splitsville soon, with her doing the splitting.
She just wanted a ride on that plane.