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(Prison Break)

Sara: You went to Loyola.

Michael: You've been checking up on me.

Sara: I like to get to know my patients. I went to Northwestern. Graduated two years after you did.

Michael: Maybe we met before, you know, drunk, out at a bar somewhere.

Sara: I would have remembered.

Michael: That a compliment?

(Hi! Does “That a compliment” mean “That an approval? / You agree with what I was saying, don’t you” ? Am I getting this in a correct way? Many thanks!! )

Sara: No. Mm..

Michael: What?

Sara: Your blood glucose is at 50 milligrams per deciliter.

Michael: So?

Sara: That's hypoglycemic.

... ...
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There are people you remember and people you don't. Sometimes you remember someone for a good reason, sometimes for a bad one.

If I had met you I would remember it. That's a compliment when you make a good impression. It's an insult when you make a bad impression.

When you don't remember at all, the person made no impression.
Comments  
nideaMichael: Maybe we met before, you know, drunk, out at a bar somewhere.

Sara: I would have remembered.

Michael: That a compliment?
Michael is asking if Sara is saying that she would have remembered any previous meeting with him because she finds him attractive in some way. It's been a while since I watched these episodes so I don't remember whether Michael is serious, I suspect not.
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 Avangi's reply was promoted to an answer.
RayHMichael is asking if Sara is saying that she would have remembered any previous meeting with him because she finds him attractive in some way. It's been a while since I watched these episodes so I don't remember whether Michael is serious, I suspect not.

Hi! RayH and Avangi,

Thank you very much! I get it this time!