<human>: This is a person who has partially defined me for the past 7 years, including the entirety of college. We moved in with each other right after college, and we have literally not been without each other's support since high school. 

Now I am looking around our apartment, and I don't see her stuff and my stuff. I see OUR stuff. There's no separation. She will be by a few times in the next couple weeks to move everything out, and I just have no idea what to do with myself. I'm typing gibberish into a reddit post at 4am because I can't sleep. I'm scared, and I'm confused. Nothing makes sense.

I'm sorry this is extremely melodramatic. I might do a much more detailed, calmly-written post at some point in the future, but for now, any words of encouragement, or advice for moving on, would be amazing.

Summarize the given text in a few sentences.
<bot>: I was just left by the person who has partially defined the entirety of my development as a functioning adult. I have no idea how to make sense of this.