How did you get over a heartbreak?

Break ups are so painful, especially when you had planned to get settled with him/her.

How come suddenly the person stops loving you, stop making time for you? Why don't they show any effort?

Been going through a lot lately, I come back home after work and I go through mental breakdown each and every night.
How do I stop this? I feel lonely and helpless.
How did you get over a heartbreak?
How did you get over a heartbreak?
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