When property is owned by either the husband or wife, the other has no interest therein which can be the subject of contract between them, or such interest as will make the same liable for the contracts or liabilities of either the husband or wife who is not the owner of the property, except as provided in this chapter. [§3394.] The distributive share or dower interest of each in the property of the other, is inchoate and becomes complete only upon the death of the owner of the property; consequently any agreement between the husband and wife relinquishing their respective interests in each other's property, though such agreement should be made in contemplation of separation is invalid. Upon a dissolution of the marriage relation by divorce, the husband and wife may contract with each other with reference to a division of the property, provided the contract is reasonable, just and right. A husband may pay taxes and interest on an incumbrance on a homestead owned by his wife, but occupied by both, and may make repairs upon the same. He may make improvements on land owned by the wife and may expend time and labor in caring for any of her property, without rendering such property liable for his debts, provided there is no collusion between them and no evidence of fraud on the part of either. A wife's property cannot be taken for her husbands debts, although it may be in possession of the husband and the creditors have no notice of the wife's ownership. [Sidenote: Remedy by one against the other.] Should either the husband or wife obtain possession or control of property belonging to the other, either before or after marriage, the owner of the property may maintain an action therefor, or for any right growing out of the same, in the same manner and extent as if they were unmarried. [§3395.] If property or money belonging to the wife, but in possession of the husband is used by him, with her knowledge and consent, in the payment of debts incurred for family expenses, or for other purposes connected with the support of the family, she cannot recover for the same, in the absence of an express agreement on his part to repay her. If a wife advances money or property to her husband to be used as he may choose, the presumption is that she does so in view of the mutual benefits which may accrue from the advancement and she cannot recover the same unless there is an agreement for its repayment. [Sidenote: Husband not liable for wife's torts.]