My girlfriend wants to take a break. What should I do?

My girlfriend and I have been together for 2 years 5 months. She's originally from California. But we met at college in New Jersey (where I'm from), and we're both in our last semester. During the winter semester break, she went back home to California for 2 weeks. When she came back, her attitude was completely changed. She began communicating less with me. I noticed immediately and became worried. A few nights ago she broke the news to me that she needs a break from our relationship. Her reasoning was because she needs to focus on herself right now because she doesn't know what she's going to do with her life and she's going to have to make a huge decision soon (whether or not she's going to stay here in New Jersey or move back to California). I totally understand where she's coming from. But I told her I'd have no problem moving out to California with her. But then she tells me it would be better if I stayed in New Jersey because I'd have a better life and career here. Honestly, I'd rather be with her than make more money.

Right now, I feel broken, lost, and scared. I've loved her every minute of our relationship. I want to do whatever I can to ensure that we stay together.

It's not like we haven't been ignoring each other. She still sends me texts in the morning and I reply.

What should I do now that we're on a break?

Should I send her a text of how I feel? I want to tell her that I hope we can work this out