Just reply to the texts with ty, 1-2 word responses, tbh..everybody knows those annoying, short texts when you're trying to game

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At work, don't try to look good for a week or 2, and just be boring when you speak to her IMO..
Don't act like a or tell her the truth, though, just make yourself unappealing..it could take longer if she's persistent and a clinger, which is probably the case since she's a single Hispanic woman in her 30s(probably eager to birth a few kids and get fat, tbh), unfortunately..I wouldn't make it an obvious or mean-spirited rejection, since you have to work with her every day, obviously, so I'd try the subtle, "making yourself boring" approach..