Way to go!!
Don't worry about being "vague"....if it comes to making him leave "for a while", THEN you can define how long that is. And even then, YOU are entitled to change that length of time according to what YOU need.
I think you did really good. Just remember, for a boundary to work, you have to enforce it...it sounds to me like you're willing to do that.
You'll be amazed at how, once you start setting and enforcing your boundaries, it becomes easier - at least it has for me. It's like realizing "wow, I don't have to put up with this". I'm finding I can walk away from unhealthy situations now, even if it means going to my room and leaving the "situation" in the other room.
Hugs and prayers!
Amy