(g) A proceeding brought against the spouse by a former spouse so long as the property and debts of the marriage have not been adjudicated, or in order to establish, modify, or enforce a child, family or spousal support obligation arising from the marriage to the former spouse; in a proceeding brought against a spouse by the other parent in order to establish, modify, or enforce a child support obligation for a child of a nonmarital relationship of the spouse; or in a proceeding brought against a spouse by the guardian of a child of that spouse in order to establish, modify, or enforce a child support obligation of the spouse. The married person does not have a privilege under this subdivision to refuse to provide information relating to the issues of income, expenses, assets, debts, and employment of either spouse, but may assert the privilege as otherwise provided in this article if other information is requested by the former spouse, guardian, or other parent of the child. Any person demanding the otherwise privileged information made available by this subdivision, who also has an obligation to support the child for whom an order to estabish, modify, or enforce child support is sought, waives his or her marital privilege to the same extent as the spouse as provided in this subdivision.