I agree with both ladyjools and Derby. I see that there could be alarm bells, but it's up to you to take care of yourself and keep your emotions in check. Be guarded yet open to possibility. Take note of how they answer questions and be very honest and open. What better way to practice honest open communication than with folks that say they are poly?! If there is some reaction to that and they respond in such way that makes you suspicious, overly confident and unwilling to learn and grow with you then yes, run.
Perhaps they would benefit from reading your post? and others here.
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