Sephiroth’s story

I was stuck for the longest time on chapter 7s boss which I was finally able to defeat today quite easily lol. In any case, man Sephiroth’s story is just so tragic. Watching him reaching out to people he cared about and consistently get left behind is heart breaking. But I wanted to ask what people’s thoughts are on the story. In traces of two paths, I thought it was mentioned that Glenn became a robe years ago. But then we see him in Wutai. I’m a little confused on the role he plays in the story. Also, I was so mad at him when he kicked Sephiroth’s necklace.

Sorry, I guess Sephiroth’s story was just really moving to me, but I don’t have friends who play ff7 so i wanted to make a post and here what people thought about the story and Glenn and everything else. It’s one of those things where I want to discuss, but have no one to discuss with.