SOLVED. YA Romance where King is vulnerable around whoever touches him. Read around 2018-2023.

[Anna Richards]

There is a king who wears concealing clothing because if anybody touches his bare skin, he will forever be vulnerable when that person is around. Eventually falls in love with a girl I believe and eventually allows her to touch him. I don't remember why she was in the palace to begin with. I could be remembering this wrong, but I think his father or some other relative before he became king may have died because of their vulnerability once they've been touched by bare skin. I read it 2018-2023 probably. Sorry I don't have more details!

[Anna Richards]

The Shadows Between Us
Found it on my library card records!