Why, why, why me lord?

Why do women go silent when in a relationship? Girl I'm dating, we have been fine, no problems until this last Wednesday when her demeanor changed. She's hardly talking now if at all, or ignoring me all together. I've asked what's wrong, what's bothering her, or if I did something wrong and not a peep hardly out of her. We were supposed to spend this weekend together for memorial today but she last night said her house is gonna be full from people coming out of town. I said ok. I asked her if were going to church and got the reply back I'm working 9 says straight. She has this weekend off hence me spending the weekend together. Somethings not right my gut is telling me. what should I do?
Why, why, why me lord?
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