Falsely accused of stealing at work, should I quit?

I work as a stocker. I've never done anything wrong at work and I work very hard and go above and beyond. Yesterday I was accused by a boss saying I stole and drank one of their beers... this is not true and I am very upset about it. I told them they are wrong and could I see the footage and they said there's no camera there but they saw me do it. I bring my own water bottle to work and that's all I've ever drank. I told them they are wrong and how upset I feel about the accusation because of how hard of a worker for them I am. at the end of the night they apologized and said they feel stupid of accusing me and know I am a good worker and probably the best worker they've ever had and don't want to lose me. but I still feel hurt and let down like why am I working my butt off so hard and going above and beyond when this happens? what should I do? It's really stressing on me and I feel undervalued and underappreciated and really just want to quit at this point..