Answer:
I think friendship means to have someones back and always be there for that person no matter what. Friendships don't always last and that's okay because people change. People say "Oh, we're gonna be friends forever and ever!!". That's not what friendship is. People will always hcange and it's a good thing to change. My point is, friendship means that a friend will be there for you but they will depart from you one day.
Hope this helps