Loss of a Petal

Why, my friends, have you drifted away from me? We were a flower: I the stem, You the petals. Some of you rotted,  And fell far away. The rest detached themselves, And left in search of something that will never be. I know things change,  Our little world has gone astray.  Yet, the blame rests solely on me. I should have known you would leave at some point, As all petals do.