Sorry for bumping in but I'd like to say something about this situation. If they gave you an item, its yours which gives you every right to trade it away as you wish. So instead of them getting mad at you, they should be understanding about it.
Secondly, it's pixels. So it shouldn't matter in any case if you traded it or not. Gift or not, it's your choice and what you do with it is up to you.
If they were your 'friend' they wouldn't leave you because you traded away a gift, truly irrational.
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Thing is that, she (the one who gave her the stuff) said "Afghan follows me around begging for items" I honestly don't see friendship in that.