it has moved very quickly and he is living with me
Christ, didn't take him long to get his feet under the table, did it?
I suspect one of the reasons why he's ANGRY about you going on holiday, is that your 2 best friends will talk some sense into you.
Seriously, dump him and get him out of your home NOW before you go one holiday.
Please do The Freedom Programme and seek some counselling to help you establish better boundaries.
You're only 25, you do not have to settle for this possessive, controlling twat. And as everyone else has said, it will just get worse from here until you are isolated, questioning your own sanity and miserable.
I'm not saying this for dramatic effect. I've been there. And it took me years to work out how to get out and put myself back together again. Please don't be me. Don't waste time on this horrible man. You deserve better than that.
Enjoy your holiday and tell your best friends everything about this guy. They won't judge. They'll just help you get away (and stay away) from him. 