Should I take her back?

I've been dating a girl for a while now and ever since its been unbelievably amazing. But in the last 3 days, we've had some arguments that almost made us end things twice. Yesterday she asked me if I wanted us to get into a more srs relationship, I told her I wasn't sure because the last few days had been so rocky so she decided to end things. Now she's apologizing. What should I do?
Should I take her back?
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