[That's because unlike his HOBO HIPPIE BEST FRIEND he has a job! And responsibilities! Not everyone can be fresh off the paradise express, ok!?
As he strolls up, wearing his usual garb (having changed out of his lab coat and other incriminating rocket-related clothes), he slows his pace seeing...Hythlodaeus bumming around on the stairs to the building.]
...have you lost your key?
[This. This is the bitter part of that earlier bittersweetness he feels about Hythlodaeus' return, not the whole trauma of losing him and everything. Why did he befriend someone so annoying.]
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As he strolls up, wearing his usual garb (having changed out of his lab coat and other incriminating rocket-related clothes), he slows his pace seeing...Hythlodaeus bumming around on the stairs to the building.]
...have you lost your key?
[This. This is the bitter part of that earlier bittersweetness he feels about Hythlodaeus' return, not the whole trauma of losing him and everything. Why did he befriend someone so annoying.]