From what I understand, divorce is a great stigma in the chassidish world than in the rest of Judaism. So people are more likely to stay in bad marriages.
There is no basis in reality for this assumption. You are assuming a baseless reason without any data, to fulfil you’re assumptions.
More importantly, there SHOULD be a stigma for divorce. Divorce as is, is done way too much and way too rapidly without giving the marriage a chance or a chance to fix there underlying problems. (Sure there are some exceptions.) If divorce didn’t have a stigma, you would have even more of them. Thank G-d there is a great stigma against divorce, otherwise divorce would be just like another trip to the grocery.