Jen searches carefully for the right dates on Tindr; dates who will provide what she really needs. Jen is a kind of vampire; she feeds on bad thoughts.
And one night she hits the jackpot.
As this is a short story, it's tough to say anything more without spoiling the whole thing, but Wong builds setting, situation, and character with exquisite perfection.
I also reviewed her The Fisher Queen, last year.
This story and others I received as part of the 2016 Hugo Awards voters' packet.