Must I marry my cousin, even though I do not desire him and love someone else, and my father is forcing me to do so?

It is not permissible for a father to force his adult daughter to marry someone she does not desire. A marriage contract made without her consent is subject to her ratification. It is advisable to supplicate, and for wise people to counsel the father. If the father insists, she may refer the matter to a Sharia judge.

If the marriage takes place against her will—out of filial piety towards her father—it may contain reward and blessing, and it might be better for her than marrying another man. Do not forget to perform istikharah (prayer for guidance) in all her affairs, and avoid any unlawful relationship with a non-mahram man.