<human>: Provide a brief overview of the text.

My fiance and I, who I have been with for about a year and a half,  had a wonderful weekend on a camping trip.  On the way back, we were 5 minutes from her parents house to pick up our dog and she wanted to smoke before we got there but I don't like smoking in my car.  To make a long story short, we started arguing, she opened the door at a stop sign about 2 blocks from her parents house and started walking, and I drove off to cool down and get some gas.  

From that point on it went down hill.  She wouldn't talk to me, she locked me out of the house, and she was very vocal and slamming doors.  I hadn't eaten so I told her where I was going, to which she didn't respond, and went to get a bite to eat.  I went to a friends after to talk and get some perspective, then I saw my sister for her birthday.  I was gone for about 3 hours, and I let my fiance know where I was during this time.

When I got back, she had all her things and her daughters [7] things packed and she said she was leaving me.  I tried to talk to her but she didn't want anything to do with me.  She kept saying I abandoned her, and that I didn't want to talk to her, and that she hadn't eaten since 9am and it was my fault.

I think she has cooled down a bit today, but she is not wearing her engagement ring.  I just don't know what to do.  I tried to apologize, I realized I made a mistake and had no intention of abandoning her.  It was just a mis-communication.  It scares me that she would pack everything up, take her daughter out of school and away from her friends, and just leave me that easily.  We have fought before, but always worked through it.  I think we have a great relationship and I love her with my whole heart. This turn of events makes me feel uncertain about our future.
<bot>: Fiance and I had a fight and when I got home from dinner, all her things were packed and she was going to leave me