<human>: Forewarning this is going to be long

Some background, growing up I was sexually abused by my sister. It used to not bother me but in the past couple of years it's started to. I'm fairly certain that I have depression, but I haven't found a psychiatrist that I trust enough to open up to yet, so I haven't been legitimately diagnosed. 

My girlfriend and I have been together for just about a year and lately my problems have gotten worse. I don't know why or what to do. I don't leave my apartment except for work now basically. I try to be happy and deal with, but its taking a toll on our relationship. 

Also she tends to do the opposite of what I ask. She has a key to my apartment and I've asked her not to have all of her friend over smoking weed in the middle of the day or while I'm not there. I got home from work yesterday and there they were all high as fuck. I was mad and was kind of an asshole about the whole thing so I left to return some movies. When I got back she had left and taken most of her stuff. 

Now she won't answer my texts and needs me to let her in (I took her key because mine broke this weekend) so she can get the rest of it. I don't even know what to do or how to try to fix this.

Summarize the given text in a few sentences.
<bot>: girlfriend doesn't know how to deal with my depression and idk how I can be less mad and more happy with her in general