Hi Laur88. Thanks for the update.
You really have a lot of things on your plate right now. You need to simplify your life as much as possible, and do things that YOU need to do to remain stable. Also, don't waste your time and energy getting upset about things in the past that you cannot change, e.g. The party your room-mate had. Tell her what you expect from her in future, and leave it behind.
Relationships are hard work, but also rewarding. Do you have the energy and time, and are you in a state of mind to be going down this road right now? If you can work out if you love him, it will make the effort a lot easier to deal with.
I'm glad you've had some fun times- they really are necessary for us to cope with life in general.
It's taken me nearly a relapse to stop and smell the roses. To look after myself, because I'm worth it. If I don't, no-one else will.
Hang in there- you're moving ahead in leaps!