My first college quarter was last quarter. I moved to a new city and knew no one, and made a few friends over the course of the quarter. Around October, I became severely depressed. I started to pull away and when I told them that I was depressed, they ask that I come back when I feel better, but to give myself time and space away from them. I left school without them saying anything to me. They had created a new groupchat without me as soon as I started pulling away, which involved my roommate. The month long break showed that none of them really contacted me, not even my roommate on a regular basis. The only time my friend contacted me was to ask about an order I had placed. They still have not spoken to me, but my roommate has been out with them several times. 
When I asked my roommate about if they felt remorse, she said that they both did, but they felt that they were in the right because they acted on how they would like to be treated, not how I would. Part of me wants to just forgive them so I have people to talk to and not be so lonely, but the other part of me wants to completely erase them from my memory and from theirs. What should I do?