ok situation is I have been with my girlfriend for nearly 5 months now. Everything is good normally but occasionally she gets upset if I don't give her something she wants. About two nights ago we went out walking and she showed me a necklace she liked and asked me if I'd buy it for her, I said I thought it was too expensive and no I wouldn't buy it for her. Anyway when we got home she basically stormed off without saying good bye and I didnt hear from her yesterday. I thought her behaviour was pretty rude, one for asking me to buy her a gift and secondly acting the way she did when I didnt. We had something planned for today which I was looking forward to but there has been no communication from her, no apology. I was tempted to cave and contact her regarding our plans for today but that would only reinforce her bad behaviour no ? So how should I deal with this situation ? I like her and most of the time we get on really well.