Dear Sir,
1) Your wife has no legal right to stop you from going abroad.
2) If You want to file for mutual consent divorce you can file the same immediately if you have been separated for 1 year already. You can also file application in court to waive off the 6 month cooling period.
3) As there are no pending criminal cases against you, there should not be any legal issue with you flying abroad. It is advisable to grant POA in favor of your parent or relative to attend any court issues if needed.
4) You can appear in proceedings through video conferencing.
5) The wife may be pressuring you to get a settlement in favor of her, like property money as amicable settlement is part of mutual consent divorce etc.
6) The wife cannot claim alimony if she is working and has self sufficient living conditions.
7) She can claim alimony if she can prove vast difference in her current income from your income. Court takes into consideration the income of wife, if she is enjoying lifestyle similar to the one she did when she was married. Court will not grant any alimony.
8) if she files for alimony, your POA or you can claim her income and oppose her.
9) If your wife is threatening you collect such evidence. And if you feel the need you can file complaint against her.
Thank you