When someone pays you a compliment, whether its on your beauty or what you have done or an article of clothing that would look good on you. It is their opinion of your ego that they are complimenting. Your ego will then take that compliment and try to use that compliment to build itself up.
That same person, on another day, could turn to you and say that you look a bit fat today or scroungie that day, or that doesn't look good on you, or your performance on a certain task wasn't up to par. Now what does your ego do with those comments? Makes you feel bad about yourself, your possessions or your performance.
Don't take anything personal.
I can't help you out on you feeling despair over not buying a purse that you found to your liking, and maybe already have 27 of them in your closet, because i'm not materialistic.
