In fact, this sentence also applies to men.
But now that you have slept with her, it seems that you are unkind and irresponsible to break off your marriage now. Your parents' opinion is right. They are honest and kind people. After all, blind date marriage is not shopping. If you think something is bad, you can return it or give it to others.
I don't think that girl has any unbearable shortcomings. One is poverty, and the other is that she has no passion for sex. The family is not good, and it can be improved after marriage; It is not necessarily a bad thing that she is not interesting. You can put more energy into work and entrepreneurship. Not to mention that she will cheat on you.