She's inlove with a GAY!!! Now what?

This lady is inlove with a gay. Maybe he's a biual. They started toiling a relationship as sweethearts. However, there were 2 instances that she found out that he's into a man. He begged for forgiveness; he promised not to anymore; she accepted and forgave for two times. He loves her. She loves him much more. now what? Is this a promising relationship? Would he change and be a straight guy? She's still hopeful for him inspite of the fact that she has a foreign suitor. Please enlighten...Thank you so much!