How can a non-Muslim woman be separated from a non-Muslim gay man, and what is the best way to invite her to Islam, given that she has a Muslim friend?

Friendship between a man and an unrelated woman should not be encouraged, because this relationship is forbidden and leads to tribulations and violations of Islamic law, and it may lead to committing major sins. The goal of helping the woman and inviting her to Islam can be achieved through another Muslim woman. The duty is to advise both parties that this relationship is forbidden in Islam.