Can my now-ex-boyfriend kick me out of the apartment if I'm not on the lease?

Wow, that is a harsh situation to be in.  Without any written lease, you are essentially an invitee or guest of his.  You could try to make the argument that you are a sub-tenant and that you have paid the other expenses in lieu of rent.  I'm not sure this argument would fly because tenants ordinarily have to pay a set amount on a set date each month to be considered "rent."  But the question is who would you even make this argument to?  Unless he takes you to court to evict you, you would not even have the opportunity to explain this to a judge.  Only tenants get to go through the legal eviction process.  If you are not a tenant, will he simply lock you out?  I'm assuming you have a key.  Will he change the locks?  If he does this, you should try calling the police or sheriff and explain that you've been locked out of your home.  Be prepared to show them a piece of mail or something with your name on it at that address to prove that you live there.  If you have any of the utilities in your name, that would be perfect, but I'm assuming you don't.  Perhaps a credit card bill or other "official" looking bill or letter would suffice.  But even so, there is no guarantee that they will help you get back in.  They may tell you that this is a civil matter and to take him to court.  I have successfully handled cases where we sought injunctions against landlords who had unlawfully ousted tenants without due process.  But those were cases where the tenancy was clear.  An injunction is a complicated legal process that would probably not be worth it in your case, since it is clear that you are going to have to find another place to live anyway.   This answer is given in accordance with the laws of Virginia and may not be applicable in any other state.  It should not be construed as legal advice, as that would require a more thorough analysis of all of the facts involved in a specific case.  If you need further information or assistance, please feel free to contact my office for a consultation. Case results depend upon a variety of factors unique to each case. Case results do not guarantee or predict a similar result in any future case.