Your reactions to his behavior are extreme and over the top. Suicide is never the answer, and I seriously suspect his tampon excuse is to avoid a repeat performance by you. There are many other more serious issues here I think besides the obvious lack of sex.
You need to find them and deal with them, and stop assuming he was fine with his past when you met him. Lack of sex is usually just a symptom of a greater problem that needs addressing in other areas of the relationship. If it can't be resolved together then you have no choice but to be apart.
You sorely need some honest communications between you.