Dear Prudence is Slate’s advice column. Submit questions here .

Dear Prudence,

I broke up with “Josh” quickly because it felt like he was intentionally trying to make me feel jealous or insecure about his own ex, “Jessica.” (She came out as a lesbian when they broke up.) Jessica always kept her distance from him, treated me normally, and seemed in love with her own girlfriend. The way Josh pushed jealousy was so clumsy that it was more bizarre than anything else. The last straw was when he no-showed to pick me up for a date. I went out to the bar on my own. I ran into Jessica and her girlfriend, and they were at the bar the whole time I was. I got home 10 minutes before he arrived. He apologized by saying “I lost track of time because I ran into Jessica and we just have such a d

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