What should a young man do if he loved a girl and promised to marry her after her graduation, then two people came to him informing him that she is in a relationship with a professor who kisses her in his office, and she denies it and swears by the Book of Allah that she did not do that?

If you know that the girl is religious and of good character, there is no impediment to proposing to her, for the Prophet, peace and blessings be upon him, said: "A woman is married for four reasons: for her wealth, for her lineage, for her beauty, and for her religion. So, choose the religious woman, and you will prosper." What has been reported about the existence of an unlawful relationship might be due to jealousy, and people should not be judged based on mere suspicion. It must be noted that it is not permissible to establish a relationship with any foreign woman outside the bounds of marriage.