<human>: Summarize the given text in a few sentences.

Backstory:

So the past year has been absolutely amazing.  Things went so well that I couldn't imagine being with anyone else, and she has felt the same way.  We are both in our last year of college and she lives with her dad and I have an apartment with two roommates.  About two months ago she suggested that we should look for an apartment together and I thought it was a good idea.  We found a great one for a great price and signed the lease last week.

For anyone who has looked for apartments in a college town, you know how cutthroat it is. So when the landlord called us to sign the lease, it was pretty sudden. The plan is that she is going to move in this week and I won't move in until August when my current lease is up. 

Ever since we signed, she's been kind of spooked and started being a little distant.  She got a lot of school projects put on her all at once so I figured she was just stressed with school.  After finally getting her to sit down and talk, I get it out of her that she has just been wanting some space.  This is completely understandable since she has spent almost every night with me and doesn't really enjoy staying with her dad.  Unfortunately I sensed a bit more was wrong and probed a little bit more.

She said that she's scared of the commitment and that in every relationship she ends up just turning and running. She never confides in me or her friends when she has problems, so I worry that everything seems to boil over all at once in a big emotional perfect storm.

I will do absolutely anything to keep this girl and the fact that we both just signed a lease could make things messy.  How can I get her to realize that it's worth it to face the fear and see whats on the other side instead of turning and running.  She also said she is just terrified of having an average and static life.
<bot>: Girlfriend and I signed a lease for an apartment (her idea) and now she is scared and is questioning the relationship.