Not sure

I feel so relieved.
I've had some of the hardest of times.
But I can fall into friendship so easily with you.

Not sure why
But this is a question that doesn't need to be asked,
And if I had to question, you need not answer.
Some things just are.

Not sure of this circle's beginning, nor its end.
But I know we'll walk beside each other many a year as the greatest of friends.