Yes, he COULD throw you out.
However, to get you out legally, he'd have to evict you using the court system.
Eventually, if he follows the laws available to him, you'll be evicted from the place where he pays rent because your name is not on his lease.
I suspect you knew the answer to your question, but held out hope to the contrary.
Make it easy on both of you, leave.
You can go live with a relative, a friend, or even walk the streets as a homeless person.
Why stay where you are unwanted?
You don't need to answer that question, it was posted to make you think.
Dude no longer wants to be involved with you, gather up your belongings and your pride, and leave ASAP!