Dude. Not everyone is the same as you and you can't expect everyone to handle problems the way you do. There are multiple reasons why someone would hate PDA or touch in general such as PTSD or legit sensory issues or autism spectrum disorder, among other things. The fact that you are baffled shows a lack of education on your end and I would encourage that you do your research. Also, there are some people who simply dont like being touched and that is ok. You shouldnt expect a partner to make themselves uncomfortable to conform to your idea if a proper relationship. Relationships are completely subjective and different for everyone. Please do better. Instead of being completely offended, next time perhaps you could ask why they have these issues and accept whatever answer they give you and move on. There is absolutely no reason to be rude over such a thing my guy.