In your BaZi four pillar of destiny (also known as Patt Chee), your wealth star defines your girlfriend, wife and father. If you are strong day master it also denotes your property, assets and your wealth. When there is a clash on your wealth star and if you get rid of your wife, you will be expected to loss a huge part of your wealth too.
Learn to communicate with your spouse through difficult times to soften such clashes and this may be prevented.