Wife upset because I didn’t use her charger?

R

Kinda short one, the wife and I both forgot our chargers at home on this short trip and we’re staying at a hotel for the night so we went out real quick and bought a new charger for the block we have and so night comes around. I decide to let her use the charger because my phone is doing fine but then when we get ready to sleep I had already fallen asleep and was woken up. She offered for me to use her charger but I was tired and just said I was good and wanted to sleep so she got upset at me. Did I do something wrong?