“Better die an old maid, sister, than marry the wrong man.”
“You would be better off having nobody than the wrong somebody. (On marrying for the wrong reasons.)”
“Right Jo better be happy old maids than unhappy wives or unmaidenly girls running about to find husbands.”
“Parents die, daughters grow up and marry out, but sisters are for life.”
“We're married. I will protect you. I will die for you. Better than that. I will live for you.”
“A sulking sister is better than a scolding sister.”