lol really? Haha, if you think someone asking for clarification is "bitchy" then it's no wonder you're having so much trouble with these "INFPs" of yours.
Maybe it's a difference in meaning between the UK and the Sates, but I'd consider "bitchy" to mean someone who gossips about people behind their back, or plays office politics and stuff like that.
I can honestly say I have never encountered a single INFP either IRL or on the net who engages in that kind of behaviour, in my experience it's a complete anathema to us (primary Fi and all that).