I'm sorry to hear about your girlfriend and your mother, but you must realise that it's not a curse, and you did nothing wrong. Sometimes these things happen, and they happen all at once so it's hard to find a reason behind them. The truth is, there is no reason, it's life. I doubt anything anyone can say will make you feel better, you just have to be strong, be there for your mother and make the redt of her time here as happy as you can, build some memories.

*hugs*