Sorry I've been coming and going since I saw your post. I just had the opportunity to read through some of your prior posts in the relationship subreddit. It looks like you guys have some issues well beyond the size comment. All I will speak on is that particular issue. I used the word trolling which may have been a poor choice of words. All I know is that you don't want to dive too deeply into this issue. You can't let it become something that consumes you. You will never know why she said what she said or if that is how she truly feels. Personally I've found myself constantly reflecting on that time in our relationship and what she said. It goes away for long stretches but before long, it pops back into my mind and overwhelms me. I've cheated on her several times throughout our relationship and find myself subconsciously hoping someone will say something that "fixes" how I feel about myself. I've had multiple woman confirm what I already know.....she was wrong. It doesn't help though because we are still together and I worry that true or not, it is her opinion of me. I'm obviously not the guy to give you advice on how to break up with her because I can't even do it myself. I strongly suggest that you find a way to do it though. You will never have a healthy relationship if you constantly question how she sees you. There are some things that can not be unsaid and can not be unheard. I would read through smalldickproblems. Maybe it will give you an idea of what a small penis actually is. Some of these guys are 2-3 inches. Many are boarderline suicidal. It seems selfish not to appreciate what we have after seeing what these guys go through. Just my two cents. Good luck man