Hi Stardust,
I understand all that you've gone through and are currently going through. Speaking from experience, I know that it is difficult to get over a shocking & painful betrayal overnight. But I want you to know that we as human beings are psychologically more adaptive than we think/ know.
A few years ago, I was confronted with my husband's affair. Never before knew that it could ever happen to me... we were together since our school days and always only had each other. I was in deep shock, all the more because I never took things for granted - maintained my figure and looks after 2 kids and was always very attentive to my husband's needs, and never depended on him financially. I also trusted him 100%, never checked on him, never suspected him of anything... hence, I was so shattered at the "accidental" discovery that I even felt suicidal briefly. Naturally, divorce was on my mind too. He begged me real hard for another chance. I decided to give our marriage another shot because it didn't take him long to give up the other party (they were together for a few short months). He sobbered up quite quickly and realised who he really wanted. I was so prepared to let him go then. Saw no point in keeping a man whose heart was no longer with me. But he refused and immediately ended his affair.
I'd be lying if I said that the road to the recovery of our marriage has been easy. It definitely has not. I struggled very hard within myself in the initial months. Even after 2-3 years, I still occasionally think about it and feel lousy. It's more like a battle of my mind. My husband had truly repented. He's still not a perfect man, we still argue sometimes over other matters but absolutely no more infidelity on his part. He also didn't put me in a position to doubt him or suspect him.
I'm not sure if there's any help to you (and other betrayed wives) by sharing my story. But our marriage did survive the affair. It hasn't been easy... I had to deal with a lot of emotional turmoil myself and I, too, felt that he didn't seem to do enough to ease my pain initially. I couldn't get the affair out of my head... and yet, he wanted no mention of it. I said the same thing to him... I was always digging for details with the justification/ excuse that I wanted closure... but honestly, my husband was right... I wasn't helping him at all by reminding him constantly. So each time I felt depressed (especially in the night), I dealt with it myself... I tried to rationalise/ intellectualise my feelings and thoughts and guide them towards a positive direction e.g. I focused on the good that came out of it. My husband was more open to me than before and he also treasured the kids and me much more than before - more family-oriented. Sometimes, when memories of the affair hit me in the night, I don't tell him, I ask instead that he hug and hold me in bed. Well, I prayed too.
It's amazing how time had passed since it happened. In the first year or so, I still harboured thoughts of a divorce. I felt like I should move on as I felt a lot of injustice for myself. Looking back, I'm just so glad that I pulled through that period and not throw in the towel. What made it harder was that I kept it from all my close friends (coz I wanted to protect him and felt that it'll be harder for him if more people knew), I didn't share on forums, or visit any marriage counsellor. Only my closest family knew but they did not bring it up or talk to me about it either, thinking that it's better not to remind me. I was hurting very badly on the inside. I kept a journal and prayed my way out of depression. Mentally, I was determined to stay strong.
Stardust, if I were you, I would continue to breastfeed (but everyone is different). There's more than one way to treat anxieties or obsessions... medication's not the only way. There's always cognitive therapy and emotional therapy. You can also control the direction of your thoughts if you make a conscious effort. It's good to pen your feelings & thoughts in a journal so that you can keep track of your own emotional progress. See a therapist if you need to. Or a good friend may just help as much. All you need is someone mature and reliable who would listen. Talking & writing will release the negative emotions inside of you and keep you mentally healthy and sane.
All the best, Stardust! Don't give up easily if you have made the decision to give your marriage another shot. Mine could have been another divorce statistic years back if I had just walked away. Of course, it takes 2 committed individuals to make a marriage work. If one spouse is not willing to stay faithful and work towards a good marriage, it's simply not possible.
It's easier these days to end a marriage than to save a marriage.