Ex's income has increased quite a bit. Everything costs more today. Lifestyle is no where near what it was during marriage.
Family Law Attorney
The short answer is that you will need to show a material change in circumstances warranting a modification of alimony. Just because your ex's income has gone up does not mean that you are entitled to a modification, nor the fact that things cost more. It will also depend on the language of your Agreement or Judgment regarding possible future modification of alimony, as well as increasing costs, etc. You will at the very least have to prepare a new matrimonial Case Information Statement and submit it, together with the CIS from the original divorce, showing that your expenses have increased, what your income is, etc. I suggest that you speak with a matrimonial attorney about the basis for an increase in your alimony.
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Divorce / Separation Lawyer
Mr. Kroll's advice is on the spot. Increases are available but the terms of your agreement and the reasons you are seeking an increase will be of critical importance.