Hello,
1) The circumstances of your filing a case in the family court is not clear. What was the injunction filed for?
2) You should file a quash the charges under 489A in the High Court.
3) As you are paying interim maintenance under DV case , you can highlight the same in the maintenance case to defend the claims in the latter.
4) Do not be pressurized and succumb to the tactics of the opponent and fight your case on merit. Since she was unwilling to remain in the marriage, this unwillingness and the element of extortion can be used as a defence in the 498A .