You aren't kicking her out of the MBR, you are stating your position as the man of the house is in your bed. You think any of these fantasy men she has would go sleep in the basement? Nah. They sleep in the big bed.
The wedding ring disappeared? Yea, we've all seen that one. That along with all these comments about "finding yourself" are enough to make me want to puke.
You bring up divorce and things being over with her a lot. Why? A detached person wouldn't be so focused on all of this. You need to have a roll with it/IDGAF type of attitude in regards to her emotional storm.
Does she work? You use the phrase "borrow money" in regards to spending money on normal family expenses out of your joint account. Isn't it your money? Who are you borrowing it from? Do both you and your spouse work?
H 34 W 29 BD 3/12/18 Divorce Busted Spring 19
It is not things that bother us, but the stories we tell ourselves about things.