[header] How to keep cool during a partner's midlife crisis [title] During dinner or whenever you two are alone, talk to her/him and ask how is things going. [step] Do not open about the problem yet or he/she will get more stressed out. [title] Then start opening about the problem but don't talk about negatives things start of being positive about it. 
[step] Then you will see he/she will start opening up to you. [title] Talk about it calmly, no yelling or screaming.