I am never enthusiastic about my code - I am just happy if the code is useful. I am pleased that some of my Python coding is as well done as the best coding that's done in say www.codewars.com but it's a kind of feeling that lasts about 20 seconds before I move on to other things - I've got a lot to do.
You feel enthusiastic/proud of your code/job? Your enthusiasm/pride doesn't mean a thing to me. All I care about is that I know what you're doing, that you've got the right reflexes and that you think straight when the poop hits the fan. Enthusiasm/pride is something I felt when I was a teenager but my teenage years are long gone. What matters to me now is that the job gets done no matter what else goes wrong.
I've cleaned up and finished after people who lost their enthusiasm often enough over their decades to view enthusiasm/pride with amusement and cynicism.
All I really care is whether the task/job is necessary. If it is necessary, I will get it done no matter how I feel about it, and I will get a task that I hate done as effectively and as efficiently as if I loved every minute of it.
As feelings go, my enthusiasm and pride ebb and flow and they are not a reliable barometer of anything except the here and now. I used to do scientific/engineering programming. I was enthusiastic about web programming until I learned it and decided web programming is mindless. I used to say that javascript is the worst language I ever loved until I got pretty good at javascript and then I decided that I just hate javascript. I used to be fascinated with algorithm design until I assessed that machine learning solves a much larger class of real world problems than the class of problems for which a specific algorithm can be found. And as a result of recently participating in several hardware hackathinshackathons, I am very much taken with IoT - the Internet of Things.
If you were interviewing me, your question would be lost on me. I just don't operate the way you do. I am not wired to operate the way you and I DON'T want to be wired to operate the way you do. Getting the critical stuff right is what matters to me and what keeps me up at night. The rest of it is really of no consequence to me.