It's relieving to see that his friend is actually a nice guy. Although the blushing at the end makes me wonder if he is just a really good friend or if there is some kind of one sided gay crush going on
Sure looks to me like he's trying to make a move on Shizuku. He calls her by her first name. He asks for her line id. Denies he's trying to make a move. Pretends he just wants to help his friend. Wants her to lie to Gen if he asks her what they talked about. Yup. It all adds up to trying to make a move.
that awkward moment when you casually talking with your friend then his other friend join in talk for a moment and you just froze there like a fucking stone pole cuz you don't even know him lul