I think I would've preferred if they didn't have sex so soon but this was good, they showed how traumatised he was, they showed his way of coping, they didn't make izumi see him in a sexual way when he saw him in the shower(which is disturbingly common).
Condoms? Also I wish there were more dominant bottoms and this guy isn't that it also feels kinda rapey when he sets his rules and boundaries then they are immediately not followed.
I love Luke.