Do not allow to develop inferiority complex on the basis of campaigns of your spouse "left." Throw away thoughts about what you lost the appeal, so your spouse was forced to pay attention to other women. On the contrary - he's not worthy of you, since I have done that to him a loving and faithful woman. So we should not compare himself with his mistress to think about what it is and what it better than you.
Much more appropriate for you in this situation would be completely different behavior. Take care of yourself – in every sense of the word. Sign up for courses that were not available to you due to the constant lack of time (you spent on gourmet dinners for my husband and the Laundry). Choose a sport – morning run up to labor day, and yoga will soothe, distract from Intrusive thoughts about his mistress. Often meet friends and family – it is better to strengthen the kinship and friendship ties than continuously shed tears for the traitor.
Do not try to call her husband's mistress and all possible ways to seek her out. Easier on you it will not - contrary to communicate with someone who breaks your family will bring you a lot of additional distress. If you start to beg her to leave a loved one alone, to give it to you and leave his children fatherless, crying – it is with great pleasure tell you all about your spouse. Deprive her of such opportunities to expose themselves in front of your husband in a favorable light – to quickly curb a growing desire "to see this arrogant bitch in the eye," nothing good is not over. If she will call you and provide details of intimate encounters with your husband, try not to react to her attacks with retaliatory insults and threats from you she wants.