@clemCa @DeltaZulu
Reid seems to more have a paranoia of being found out than anything. I'd strike it off as OCD developed from working as an assassin and having a habit from being in that line of work.
I wonder how much of the bad portrayal of the character relationships (regarding Reid's death and his friends' attitudes towards it) are due to the WN itself, and how much is due to the WN -> manga adaptation.
I'm rooting for Maxwell to figure Nicole out. Anyways, they should seriously either do flashbacks, or explain a little better to Reid's overly strong attachment to his past life's identity. He's lived a good part of his life as Nicole now, there should be far less overlap especially with a ~7 year gap not including the time between his death and rebirth (so his friends may even barely remember him now. After all, everyone except Fina seems to have stopped grieving for his death and accepted it already.)