<human>: Can you summarize the given text in a few sentences?

Alright, this is a slight rant so brace yourself. Only wrote this out to see if I could.

So my girlfriend decided to spoil me on my birthday by spending WAY more than she can afford. I was very excited about my gifts, but immediately realized she made a mistake because we have some many bills to take care of. I told her that it was nice but I would be happier if she returned and just used the money to take care of things that she constantly stresses about. Or at least just to have some money of her own for once. She got upset and refused, telling me that it's too bad and the money wouldn't be enough to pay but one bill. 
Now, I am having to use my own money to pay for gas, food, smokes, rent, etc. for the both of us. I'm tempted to sell a guitar just to get ahead. 
While grateful, I feel selfish for not being overly enthused about this awesome present. 
I think it was a rushed and excited decision on her part but overall was unwise to make such an investment right now.
Not really sure what to think or do here.
<bot>: My SO spent way too much money on a gift we can't afford and now I'm having to pay for everything.