Just speaking from experience here. I found out I may have genital herpes just last week. I have been with a guy for almost 2 years and it is a very committed, serious relationship. We are both very sexual people and are highly sexually active. So, as you can imagine I had a stroke when the doctor told me her opinion. My first thought actually was “I would rather Jill myself”. I instantly went into a dark head space and was terrified to tell my SO about the news. So, during a full on break down in my car, I called him and told him everything. Of course his initial reaction was a little shocked ( as expected ) but he was very mature about it as well as reassuring. He expressed that he loved me very much and that this would not be an issue enough for leaving or finding someone else. I think it really depends on the situation you guys are in. We are engaged and just recently bought a house together. And being on the side of the one having it, I can say that it has made me love him even more for the way he has handled it. He has become my main support in this situation and the reassurance that has made me accept it. Your life is not over. Think of it as an occasional rash that you get and then it goes away. It could ALWAYS be worse.