Section 9. Husband not liable for wife’s antenuptial debts.

19. Husband not liable for wifes ante-nuptial debts.A husband married after the thirty-first day of December, 1865 shall not by reason only of such marriage be liable to the debts of hi s wife contracted before marriage, but the wife shall be liable to be sued for, and shall, to the extent of her separate property, be liable to satisfy such debts as if he had continued unmarried: Provided that nothing contained in this section shall 2 *** invalidate any contract into which a husband may, before the passing of this Act, have entered in consideration of hi s wife's ante-nuptial debts.