Most Helpful Girl
You need to talk to her about it. My sister and her husband are a couple who agreed, early in their relationship, that they would NOT exchange gifts for any holidays - no birthday gifts, no Valentine's Day celebrations, no Christmas gifts. They are both VERY pragmatic, practical-minded people who don't like to participate in the commercial aspect of gift-giving and holidays. They buy each other things here and there whenever they go shopping, but it's never dressed up as a gift or anything.
On the other hand, I am a hopeless romantic. My boyfriend knows this and he's a big giver.
My advice would be to just get to know what kind of person she is and what her views on this part of dating is. Some people just don't believe in giving gifts; take that into consideration before you break up with her. If she's a nice person in general, it seems a bit hasty to end it entirely just because she's not giving you gifts. And if you really like her, you'll want to work this out.