*UNEDITED*
Since a long time ago he watched those two interact - and interestingly enough. They actually don't speak as much as people say they do. At least in the middle of the fight and before the fight. It's almost as though there's already a silent agreement between them. Those two do not need words to communicate nor do they even need any signals. It's almost as though they instinctively know already what's going on in each other's mind. They are connected that deeply.
Had he been envious of Sakano instead of her? Perhaps that's how it ended up being like. At the time he didn't realise it though, that his ' interest' and ' fascination' towards her was growing towards the feelings of love. He didn't realise then, that the irritation he felt was towards the guard instead of her.
