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So my boyfriend doesn't like me talking/ hanging out with other guys and he just notified me yesterday that he's paying for a girls plane ticket to fly in to town.. He says they've known each other for a while now and his ex girlfriend says they had a thing for a while. So I asked him about it, he said she's cute but she lives in another state. He says he has to hangout with her when she comes into town because he's paying for the flight ticket. What do I do/think. I honestly have no clue what I should do or even how I should react.