It's over imo.
Luffy interest is the same he had for zoro,usopp,chopper etc. same
luffy asking, means he already decided loki coming with him, he even getting the key... which he knows he should not do since everyone said he bad.. meaning luffy taking responsibility for freeing loki. after being told loki is bad. Luffy always shown he good judge on character when everyone thinks there bad.
Imu still end boss, and more stronger enemies will appear. luffy gonna need strong crew. So the excuse but he to op. yet he had his strength sapped over the 6 years being chained to the dumb tree with seastones. Yet he is still able to be awake and not tired, shows he strong even with sea stone sapping his strength because of his df.
Also loki never experience friendship based of how elbaf made him scapegoat since he was born. being blamed for everything even though he never involved.
loki is shown having trust issue because he been betrayed, and shun since he was born. kindness he never experienced from anyone except the animals he befriended, and also saw killed infront of him by the cowards holy knight.
loki will finally experience kindness and friendship with luffy.
you can call us loki for nakama is copium.
but my goat the luffy already taken interest, he pushed carrot,yamato away. but loki he got the key! next chapter he gonna find loki bleeding to death, so yes he is gonna be pissed someone took a coward shot at someone luffy found interest in.