Hold my hand while you cut me down

They say that imitation is the best form of flattery...well am little confused.

How can you criticize someone about their outfit, but call later to ask where they got it from....and than take it ten steps further and wear the fit the next time we go out.
I get the "Hey you know those sandals you bought the other day, they weren't that cute when i saw them the first time. Girl they have them here way cheaper than the price you payed. Should i get them?"

I mean this crap has to stop!! Whats the point really?!