<human>: I'm 17 and my social interaction basically grew through partying with people and smoking weed. That's how I figured out how to get rid of my shyness and depression.

Then I was arrested on non violent charges and expelled from school. I was also put on home confinement for 2 months before I got to court. During those two months my girlfriend of a year cheated on me (kissed someone else more than once), but I didn't drop her because she was the only interaction I had with the outside world since I couldn't leave the house. She was also my best friend.

Where I'm from if your friends are partiers and you can't party anymore, you generally don't see them much. I don't blame them for this. But this leaves me without much friendly interaction. 

My girlfriend situation was stepped down to friends then to nothing (my decision, she was still not acting like a friend) over the course of the past 2-3 weeks. Now she hangs out with my old friends, and I generally don't have anyone to hang out with.

My days now usually consist of me going out alone and walking through stores just so I don't have to sit in my house and have a self pity party.

Sorry if this is a really jumbled post, my heads kind of all over the place. 

How can I find a new friend group?

On top of that how do I deal with a partner being a horrible person at night then waking up and convincing me she's sorry and I shouldn't cut her out of my life? Would anyone with experience with that tell me your story? I feel like I'm alone and crazy sometimes.

Give me the gist of the text in a nutshell
<bot>: Got arrested, don't see friends. Lost shitty girlfriend/best friend combo. Trying to not smoke weed to cope with all of this.