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Thank you so much for reading! I don't know what would happen in part two. Any suggestions?

Well if this was a Lifetime Channel movie, (i don't have cable and haven't for about ten years so not sure if they are still around or not), but Sharah would befriend, her old boyfriends new girlfriend. Pretending all along she is happy for the couple, (not hard to do since she is a poker player), then she would set Mercy up to where she believed that Jared was cheating on her. (After all we know Jared is a cheater type). Then when she fell for the plot, put thoughts of revenge in her mind of getting even with Jared. Then Sarah can just sit back and cackle her tight little ass off smiling as she rakes in another winning pot at the poker table, and no one the wiser as to why she is so happy.

Maybe she’s friends with Mercy already, and she pretends that she doesn’t know about Jared, and when Mercy tearfully confesses that they’ve been seeing each other (omitting the detail about the cheating/overlap), Sarah acts like she’s totally forgiving and just appreciative that Mercy told her, and tells her that she really just loved Jared as a friend and is happy for them. In the meanwhile, she starts gaslighting Mercy in a subtly escalating game of psychological warfare. Ultimately, Mercy is driven to extreme anxiety and paranoia, and strangles Jared in a fugue state. The story ends with her being carted off to a mental ward in a prison.

Yes, I believe that would work.

I think since I'm still in my early days of writing fiction I haven't fully figured out how to tell a complete story, so I just kinda start at what would probably be a few paragraphs in for a regular short story, and stop when I get to a cliffhanger, and then quit while I'm ahead. :p