A woman without a husband has more right to her person than her guardian, and a virgin's consent must be asked from her, and her silence implies her consent. (Using translation from Muslim 1421a)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ «الْأَيِّمُ أَحَقُّ بِنَفْسِهَا مِنْ وَلِيِّهَا وَالْبِكْرُ تُسْتَأْذَنُ فِي نَفْسِهَا وَإِذْنُهَا صُمَاتُهَا»