It's cute. Now that they are together and lovey-dovey
You are the first one I care about? So there were others before him? Like did he kill those men who looked after the sheeps? Probably.
Considering he was straight up told "Do not trust anything but the sheep" by the one who hired him I think it's safe to assume that means there's something or someone separate from the sheep that he shouldn't trust and that others before him certainly did
Yep, he is lucky that he is alive.
The only good thing about the this is how real the uke is. He isnt naive and understands how crazy and unfair the seme and everyone is. But also his own weak disposition so he has to bend to their demands to survive.