my tire blew out

today i was on the 60 Pomona freeway
going about 60-70 mph
when i heard a loud pop
followed by banging noises coming from rear of my car

i pull over to the right shoulder to see what was going on
i found out
my rear driver side tire had blown out
my rim was exposed
and the rim did not have any support from the tire

i went back in the car and called AAA
they said they will arrive in 20 mins
after the call ended
a CHP officer pulled over behind me
and walked towards me
he asked "what happened?"
me "my rear tire blew out while i was driving"
officer "did you crash into the center divider? where did you damage your tire?"
me "no, i was in the middle of the freeway"
officer "is any assistance coming?"
me "yes, i called AAA"
officer "i see, i got a call saying that a vehicle crashed into the center divider and pulled over"
me"oh i see, well its not me"

officer walked back to his car
5 mins later a Metro Towing Truck came
and put the spare tire on

when i told my friends about my tire blowing out
they told me i could have died
i didnt know
i just laughed at the whole situation
only thing in my mind was that i had go buy new tire and maybe new rim and how much the repair cost will be
i didnt think it was life threatening

i thought it was only dangerous when front tire blow out
i gotta research this