Well, I'm close; it's Anne and Elly whining about how Steve sabotages her because he's immature.
Panel 1: Since Lynn assumes that her fans have short attention spans, she has Elly remind Anne that Steve gave Christopher a cookie when she said he couldn't have one; Anne says this is a problem.
Panel 2: It seems that no sooner does Anne make a rule than Steve breaks it.
Panel 3: This bothers her because when she got pregnant, she never thought that she'd be raising two kids. Elly says "Yeah" to signify her sympathy.
Panel 4: She then tells us that they only write self-help books about the little ones.
Summary: Actually, they do write books about how to deal with spouses who have it in their heads that the other parent is being too harsh; all this is a reason to bash an incidental character by alluding to the sort of immaturity that "inevitably" leads to infidelity.