I think that Jimin should dump y/n for Kate. Feeling betrayed y/n leaves the country to her aunts house in America. Jimin realises his feelings for Y/n and goes after her but Kate stops him. Y/n has to raise a kid up until he turns three where she decides to commit suicide. She leaves a note saying where she is going and why she isn't coming back. She returns to Seoul, to her and Jimins old house, broken and empty. She prepares to hang herself out of pure depression.
However Jimin was called off y/n phone, she left at her aunts, and he goes after her. Just when she jumps, he is there, crying. He just stand there watching her, hoping she won't. She did. She jumped and it was lights out.
She woke up in a hospital with Jimin wrapped around her. She breaks down. He promises her his world. A promise he shall keep, her aunt came with her child for his mom. She cried even more. She realised that she couldn't do anything more stupid, anything that would hurt the ones that she loved. And Jimin still has to get her trust back but they end up as a happy family. Kate became heartbroken and committed suicide herself, Jimins mother passed away of natural causes later on. The end.
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