Michelle,
I have been with my husband for 8 years and I have never seen him cry about anything except for when I was diagnosed with stage III tongue cancer 6 weeks after our daughter was born. Truthfully, it was a bit reasurring to me that he was also scared. It made me feel like my fear wasn't all in my head.
While I wouldn't want to feel that he is a bomb waiting to go off anytime, I can apprieciate his occassional need to have a breakdown too!
I also had the same treatment. It is difficult, but you will make it through this! Email me if you need anything.
Sarah