My One Regret

For once in my life I thought I had something,
Something that would last,
Something to enjoy forever,
But this came and went as most do,
Yet it lasted longer than normal,
and I abused it,
and it came and went,
But when it left it hurt,
Although I'd shown no emotion,
It hurt,
More than ever,
But now that you're gone i can only imagine,
What if I had.