How do people live without any type of love in their lives (doesn't have to be romantic)?

No spouse, no family, no kids. You travel alone, eat alone 90% of the time, nobody to celebrate Christmas or Thanksgiving with. Maybe you meet up with a group of friends to play drums once every two weeks, but other than that, you have no one. You don't love anyone. No one loves you. No meaningful relationships. how do people live these sort of lives where there is no meaningful connection with anyone? Parents are dead. You haven't seen your siblings in 10 years since they live far away.

How do people live without any type of love in their lives (doesn't have to be romantic)?
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