<human>: Provide a brief overview of the text.

I [22F] have been dating my [23M] boyfriend for almost 3 years. We both graduated college in May. I've been living in a house my parents own and bought for me to live in while attending school. Since I graduated, I've been paying rent. I have two roommates: one ex-best friend turned acquaintance for unrelated reasons and one current best friend who both also pay rent. 

Boyfriend was supposed to be away at an internship from July to October. Ended up finding a paid job so he came back early and just moved into his own place. He and I had planned on moving in together in December, but with the way things have changed, we'd like to move in together in October (he's going to have a tough time affording the place alone and I'm going to be starting a new well paying plus benefits job). 

Problem: I had told my parents and roommates I'd be living in the house until December. I don't want to piss anyone off. Pros for living with boyfriend: boyfriend's new place would be cheaper than what I pay now plus it's closer to my office. I also have been having a really tough time living with this ex-bestie turned acquaintance and my parents are extremely overbearing and I've been ready for a while to move out. I also have been ready to live with my boyfriend for a while. We have plans to get engaged within the next few months. However, I know my roommates feel that I have betrayed them and I have yet to talk to my parents about this change, and am not ready for their wrath. 

Extra info: I have a sister who will be moving in in December with her own roommates, so me moving out in December was inevitable anyways. Both current roommates are moving out in December. Parents don't make a profit on the house, so roommates' rent won't go up.

Any suggestions? I also don't want to make my boyfriend's life harder or make him feel shoved aside by not moving in with him now (as he wants).
<bot>: Moving out of house earlier than planned to move in with boyfriend. How do I not piss off roommates and parents (homeowners)?