Does this mean am weak?

I was in a gathering with a group of recently met friends, everybody was on their phones and it was boring, one of them opened the topic that Egypt used to be the richest country in the world 70 years ago and way richer than now, i just told him that according to the IMF and other statistics the whole world used to be poorer. he said my grandmother used to live then and she confirms what i said, i told him mine would say otherwise it’s non-specific, he was silent for an hour, didn’t know why he got upset, tried to act nice with him to sooth things, but suddenly he said all the girls in the world would spit in your face for your stupid mind, and i was like wtf, why are you saying that, he said because you think Egypt was poor and you think you are smart, i said if my way was offensive am sorry, then he kept on making fun of me with the rest of the group, i acted calm and kept on making fun of myself to show that i don’t care, and told him is it enough is your ego better? but suddenly after 2 days, i feel bad, i feel lynched and i feel i wanna pick a fight with him, and wanna cut off that group. was my response a sign of weakness? why do i always feel bad after sometime…