See, that's the funny thing. I haven't been in a long-term relationship for a long time. Nothing that got to six months in the past almost-two-and-a-half years. That relationship was exactly 6 months. (I also never wanted it to be permanent.) Before that, remind another year or thereabouts, and that was my last "long-term significant relationship," I guess.

Usually, I can date someone for about a month. Right now I find it pleasant I am seeing someone who is just about to pass that mark.

I think I find the level of detest(-ment?) and animosity in this poem to signal me more towards long term than one bad blind or first date. "When you learn to shut up" - sounds like the narrator knows the other person well enough to find their incessant speech habitual, not momentary. I also wouldn't probably feel so resoundingly negative about a first date unless it was truly awful. "I can't fathom/where you're finding the air," to me implies kind of that the narrator wishes the other party would choke on their words and die for lack of oxygen a little bit. I don't usually detest first dates that much. But at the end of a relationship? Oh yes.