maybe you should have asked why she thought that first, and then said something like "I see what you mean, but I think....Infp friend: I don't know why you think that girl in our class is pretty. I think she's far from it.
Me: But she is! She has big round eyes, proportionate features... (this is basically me trying to set the table for a discussion & to invite her to present her evidence~)
Infp friend: See, this is why I don't argue with you. You always do this.
Me: o_o (at that time having no idea what 'this' means)
I'm still learning about this too, but I think with alot of feelers, if theiir point-of-view is just dismissed out of hand like that, they get upset. I guess they want it to at least be acknowledged