that sounds like an awful situation , and also she should be a little more respectuful and meet her new crush somewhere else, that's just mean, if you just broke up.
well, just remember that you will feel good eventually, and all of this will be left in the past.
good luck, it seems you need it
Living with a serious X when she's moved on to some new crush is soul destroying.... From my experience There's really only 2 options.
1.Get out ASAP... go home or go sleep on a best friends couch and get it all out. The anger, pain, the crying, the sense of loss, ....Otherwise it revisits you every moment you step back into the house and breathe in that home, that never feels like home... Because her love is linked to that place... AND YOU NEVER HEAL.
2.Wait a minute...Why hasn't she done the right thing and moved out????? Been a good X in the end, Followed the campfire rule of, " leaving a person better than you met them." I.E. Realised your hurt, her responsiblity for that hurt and more importantly YOUR personal worth. AND... Actively given you back your sense of space and a place to heal...
I don't know her... or your situation but... ( feel free to blast me if I'm out of line here ) from the entry that strikes me as really user girl shitty to camp out inside your lines while sleeping with the other side.
well, just remember that you will feel good eventually, and all of this will be left in the past.
good luck, it seems you need it