That would seem oddly mature of those two considering their age at that point, but it is in line with these manga so yeah, sureI swear if we find out twin stars actually thought that Yuu might hurt himself more by trying to be an actor than quiting now and only said those things to him because they wanted to save him the suffering... I would be actually ok with that. It would be somewhat cute. Even more so if they happened to like him still after the years and will now try to break him away from heroines thinking they might hurt Yuu by staying close to him