Joseph Asagai is also a student in the school where Beneatha was also studying. Joseph Asagai is rather dramatic-looking, and he is also very proud of his heritage. This is probably what Beneatha noticed about him in the first place. As time passed by, Beneatha realized that he is also well-spoken, which made him more endearing to her.
Asagai was also smitten with Beneatha, which prompts him to ask her to marry him after their dates. He wanted to make Beneatha come home with him to Africa. This is how the play ends, with Asagai asking for Beneatha’s hand in marriage.