It's wired to us men to want multiple women if you have the perfect woman and you have a decent life then you should be faithful

We started trying for a baby and it hasn't happened, it's been iv r a year now. it's damaging our relationship, my mood lately has dipped loads, we weren't having fun spontaneous sex anymore instead it revolved around fertile window. My sperm count came back bad and now we stopped sex all together. The mood isn't right and now I'm in your shoes I feel like I just want to move on. I won't though I plan on fixing it and working on it but I understand what you are going through.