A woman’s husband went away for Shavuos this year (where Shavuos came out Motzei Shabbos.) May she make Kiddush herself with saying havdallah in the middle or is it better to go to someone else to hear kiddush and havdallah together.
There is no difference between the havdalah of the year round, and the special havdalah of Yom Tov that falls on Motza’ei Shabbos.
Although a woman can make the kiddush part of yakne’haz, she should not make the havdalah part, and should rather be yotzei with a man.
This appears simple, for why should there be a difference, and see also Nitei Gavriel (Erev Pesach She-chal Be-Shabbos Chap. 38) who gives this ruling.