When one has money but does not spend it, he remains a miser and is never happy. Similarly, when one’s intelligence is spoiled due to sense grantification, he remains a miser throughout his life.
No one can excel God in any capacity, and therefore no one can be equal to or greater than Him, nor can anyone attain the stage of equality with God by any kind of endeavor.
Srimad Bhagavatam 3.2.30
Frustrated love is one of the greatest agonies. It has no bodily pain, but the heart has been hurt, this cause the greatest pain.
What you are attached to that is what you take shelter of during death.