Commentary for Kiddushin 120:3

If we had taught the dispute only in relation to divorce, I might have said that in that case she is divorced immediately according to R. Huna because we can be sure that the husband will ask the money from her. Since they are divorced, he will not be ashamed. But we might have thought that in the case of kiddushin he agrees with R. Judah that she is betrothed only when he gives her the money since the woman might be ashamed to ask the money. In that case, R. Huna might agree that since we’re not sure she’ll get the money, she is not betrothed until she gets it. To correct both these errors, we need to teach the dispute in both the context of divorce and betrothal.