I actually think it was't Tomo having sex with Hoshi that got to Yuu, but rather he recognized that Tomo wasn't going to be with him anymore, after seeing Tomo with Hoshi and that Tomo loved Hoshi.
I gotta admit that line. "I had Tomo," really hit hard because that's where it seemed sink in to him just how badly he fucked up.
I agree it was that too. But the first image, where he sees it for the first time, and his words, I think that was his first jealous/selfish reaction. After that, I think it sinks in, as he sees Tomo make a face he's never seen before.
Agreed.
Yeah he realizes he "had" Tomo. But then decides to call him over to get rapey raped ANYWAYS!
He's like, "oh no! Love, what have I done? I'm so sorry. Tomo! Why?!... Well hello there penis, fancy meeting you here. Well there's no use crying over spilt milk. What's a little thing 'love' when you compare it to sex?"
Yuu-chan just pissed me off. He didn't have a problem having sex with other people, but when he saw Tomo get it on with someone else at the orgy, he was like, "but, but Tomo is mine..." So, I had no sad feelings for Yuu-chan when he and Tomo broke up. I was wondering why Tomo didn't seem to have a problem with Yuu-chan having sex with other people, but after Hoshi showed up at the orgy it was obvious Tomo and Hoshi still loved each other. I guess we can thank the despicable Sensei for bringing them back together, even though it took raping Yuu-chan and some group sex to do it. Wow, my post sounds so confusing.