If I have learned anything from my experiences from living with an A, I don't ever judge others decisions.
My opinion though is a kiss with another is so minor in the large scheme of things, don't beat yourself over it. My A liked to beat me down for any of my weak spots because he could not fix his own major glaring one. Sounds like this is what may have happened to you. Chalk it up to a life experience .....
4MyBoys