HELP I THINK I BROKE MY HUSBAND'S HEART!

My husband and I have been TTC for about six to eight months. I have had PCOS for approximately 10 years and finally got my hormones in balance so we could have a baby. I started to get worried that something else was wrong as we still had not been able to conceive. After talking to my doctor and realizing that the problem may not be my own I started to think that it might be my husband. After many discussions and many many arguments later I finally convinced my husband to get checked out. At the age of 30 he has been diagnosed with low testosterone. Now my issue is my husband is so distraught and upset with himself (or with me I'm not sure which as he won't openly talk to me) that he doesn't even want to make love to me at all. I am worried that I may have broken his heart. Please if anybody has ever been in this situation before and you can help it would be wonderful. I am literally at the end of my rope when it comes to this. Yes my husband is about to start treatment but I don't know how much longer we or I can go on like this. I feel like this is all my fault. Thank you in advance.