There are a lot of ways for a wife to know if her husband is having a not so good time with her on a regular basis and one of the ways is through dinner leads. By eating dinner with your husband on a regular basis you can tell if there has been a change in how he treats you, particularly when it comes to you spending time together after work or doing things that are considered less than romantic. If your husband doesn't show much enthusiasm for dinners anymore, you may want to consider whether he is truly cheating or if it is just that he is spending more time with his buddies. If he is taking you for a dinner most likely it is because he is hoping to get some "free" time alone with you which he can then spend with his friends instead of you.