Okay so I was thinking about it some more and now I'm thinking maybe not lust.
I'm thinking maybe about depression.
This is because of the "I'm going through the motions.... can't remember how to feel."
Sounds like a depressed person.
Also, the "if this is chemical I'm not ashamed" or whatever it is, would make sense. Because he wouldn't be ashamed to be depressed and hopeless if it's a chemical imbalance in his brain. Which depression is sometimes. So yeah.
Okay so I was thinking about it some more and now I'm thinking maybe not lust. I'm thinking maybe about depression.
This is because of the "I'm going through the motions.... can't remember how to feel." Sounds like a depressed person. Also, the "if this is chemical I'm not ashamed" or whatever it is, would make sense. Because he wouldn't be ashamed to be depressed and hopeless if it's a chemical imbalance in his brain. Which depression is sometimes. So yeah.
I think that makes more sense.