Which is absurd. "To spit upon" is a common figure of speech, and the person using it was clearly being metaphorical. Even iMessage doesn't support saliva transfer among iPhones ... as of 2023-12.
I have literally never, ever, ever in my entire life heard people say "I was spit upon" as a figure of speech. Ever. Please don't accuse me of being absurd just because I have not had the same life experience as you.
The context should be clear in their comments. If not a web search usually helps me clear up any such misunderstandings before any doubling down.