husband has filed for a divorce 30 days after relieving citizenship

If your husband has filed for divorce, the fact that he received citizenship recently is not relevant. You need to deal with the filing and address all of the issues he raised in his filing. While you may feel used, that has no bearing on the filing, or the fact that there will probably be a divorce. I am sorry to hear that this has happened. Should you want, I can assist you in handling your divorce. David R. Hartwig 801-486-1715