I didn't expect an apology but thank you all the same. I do see your point of view, so I appreciate you going into detail on it in your posts, even if I don't agree with all of it. I absolutely think she needs therapy, and they need to break up. But my personal issue lies with how he's handling the situation. It's not something I find acceptable. There's other ways to express his frustration. His response is why I think they should split.

You were correct, I'm not entirely unbiased, no matter how hard I try to see both sides. I have been her. I had a very difficult year with multiple family deaths along with some medical issues that threw me for a loop. I got therapy and changed a lot of things in my life. We figured it out, together. I know it had nothing to do with him and everything to do with my mental state at the time. If he reacted the way this dude had, we wouldn't be together today. He was understanding because he knew everything I'd been through and it just shut me down for awhile.

OP, please consider therapy for yourself if you're just not interested at all in sex anymore. It could be medical, it could be psychological, it could be both. I wish you well.