Pure love is absolute freedom. It gives the object of its affection unbridled power to come and go as it pleases. Even if that means that the object of its affection chooses to walk away from that source of pure love.
Let me tell you what love is not. It is not stifling and controlling and domineering. It does not mask itself under pretenses of worry or care while it slowly squeezes the life from you under the weight of possessive control. It does not lash out at you when you have failed to carry out its expectations. It does not determine your life for you while your self-will dies a slow and torturous death.
That is obsession.
It only took me a thousand deaths to finally realize the difference.