[Thanks to 50burningace for the idea]
Every time Bryan feels that Dylan is "secretly" trying to get closer to get some phsical contact he also will start to inch towards Dylan so he doesn't have to go that far to be in phsical contact with him.
Given the ocasional times when Dylan passes out Bryan just sits with him, stayin in place as much as possible amd not allowing anyone to mess with them unless it's an emergency.
And if it takes him a long time to wake up, Bryan is going to start making little braids in his hair so that it doesn't get in the way and because it gives him anxiety that their hair is always a mess.