Could've Done More
Among the numerous connections we have to people throughout our lives, some are fleeting while others last forever. Hopefully those connections that last are close friends; people that we seek out over the years. But inevitably there will be some that carry a pang of regret.
The relationships that end in fiery arguments can be smoothed over eventually. Forgiveness is always possible (whether it's one sided or not). Then there are the people you couldn't help, despite your best efforts. Those are the hardest forever-connections.
Maybe you believe that person was capable of so much more, or you have seen them falling uncontrollably for years. There have been offers to help, love shown, and acts of generosity; all to no avail. You may always wonder if you could've done more, but you can't allow that to haunt you forever.