(Strip Number 7145, Original Publication Date, 9 October 1983)
Panel 1: We find Elly and Mike shopping in a pharmacy when a woman in glasses calls her name.
Panel 2: Said woman in glasses is a one-off character named Loretta. Hum. Kortney's mother is named 'Loretta', isn't she?
Panel 3: Anyhow, Elly and Loretta get to talking when Mike notices something and tries to get Elly's attention.
Panel 4: They continue talking and since his concern is not addressed, Mike again tries getting Elly's attention.
Panel 5: This causes her to angrily lecture him about how he ain't supposed to interrupt her when she's talking.
Panel 6: She goes back to talking to Loretta, Mike tries calling whatever to her attention.
Panel 7: Since nothing else is going to work, Mike just plain yells that her fly is undone.
Panel 8: Elly looks embarrassed, Loretta is laughing at her and the conversation is at an end.
Panel 9: A pissed-off Elly trudges off and tells Mike that the next time this happens, he should ask if he can speak to her quietly.
Summary: Given that she'd even then have blown him off because of the whole be-seen-and-not-heard thing that she lives by, that wouldn't have worked either. My guess is that Dumbass Elly thinks that it's all on Mike that Loretta was laughing at her. It's not that she's a numbskull who's so busy running her fool mouth that she doesn't notice that her barn door is wide open, it's that Mike is rude.