Is it obligatory for a girl to break off her engagement to her relative toward whom she feels no affection, and there are financial and social disparities between them, in addition to her feeling that his religiosity is not at the level she had hoped for?

We advise you to accept the man if he is pleasing in his religion and character. Marital happiness and stability are achieved with a religious husband who fears Allah, even if he is poor. Money is fleeting, and a man's work as a taxi driver is not a flaw; rather, it indicates his sound thinking and self-reliance. Remember the words of Allah Almighty: "And perhaps you dislike a thing and it is good for you; and perhaps you love a thing and it is bad for you. And Allah knows, while you know not," and make abundant supplications and perform the Istikhara prayer.