I have had a problem for the last few years, it ended my marriage and now Im affraid its going to impact my new relationship as well. During sex I cannot mantain an errection. After a period of time it goes soft, after a little while I can get it going again, but Im not able to maintain during sex to finish. What can I do to fix it, and what is wrong with me? I didnt have this problem prior to my first deployment to Iraq, but since then over 4 yrs ago now, my sex life has been horrible.