I think it's important to recognize that the shidduch system does not work for everybody. There are people with medical conditions or unfortunate family circumstances that places them at an unfair disadvantage in the shidduch game. They are constantly set up with people who are not reasonably compatible or have more significant personality problems. It is normal for them to get burned out from all of the ridiculous suggestions and try to find a way to cope with their reality by enjoying single life. This doesn't mean they don't want to get married on some level, they are just dealing with things in their own way.