We usually buy noticeable different colors like pink and green. But the store was limited last time we bought new toothbrushes so we bought pink and red. For some reason his tooth brush was in my spot (separate toothbrush holders) and I didn’t even notice it was red until after I brushed my teeth.. I then rinsed it off in extremely hot water. (Neither of us have any diseases, and we make out regularly). Should I tell him I accidentally used his toothbrush?