This reminds me of something that happened when I was in high school. At the end of my senior year, my favorite teacher (she was everyone's favorite teacher!) retired. I made her a scrapbook, full of pictures and memories from her classes. I gave it to her at the end of the year, and she seemed so grateful and excited.
A few months later, I watched her dogs while she was on vacation. I went in the closet to get the vacuum and saw the scrapbook in there, like it was junk to be stored away. It made me really sad.
But I get lunch with her twice a year because we like to catch up every so often. She has brought up the scrapbook more than once, saying that she appreciates it and she's going to take it to the nursing home with her (lol, she's not even old).

So my first instinct to your question was to say yes, I would also be hurt if I made my T artwork and she put it in a cabinet. But when I think about why I would give her art, it would be the same for why I gave that scrapbook to my teacher: it wasn't for her to display it or to show everyone. It was because I care about her and wanted her to have those memories. So I would be ok with it if my T put my artwork somewhere hidden. It's just important to me that she appreciates the gesture.