“Everyone thinks they are a mentch, the key is to find out if they have a good heart. For example how do they response in a stressful situation.”
Actually, I’m not sure I agree. I don’t know if it’s fair to judge someone based on how they handle stress. People aren’t themselves in stressful situations.
I would say something similar but phrase it slightly differently. I would say that you can tell what someone is like based on how he deals with conflict. I knew someone who seemed like a wonderful person until she got into conflicts with people and then her real colors showed. On the other hand, I have known people whose middos really shone through when they were faced with conflict and dealt with it appropriately.
That is probably one of the most important things to know about someone before marrying them – how he/she handles conflict.