User blog comment:B214/Volume 23 discussion blog/@comment-3965848-20170320094444/@comment-30924344-20170320095921

She never proposed to him. She simply asked Issei if he will marry her in the future when she has an adult body like her sister's to satisfy him with. That is just asking a "Would you?" question; a curious question in that context. Koneko never said then and there "Issei will you be my husband?".