Can my boyfriend kick my son & I out if we're also on the lease?

So I moved into my boyfriends apartment two months after we got it. I say we because I helped him get it and the landlord was aware that I would be moving in later on. When I did in fact move in we renewed the lease with the names of my son and I added to it. Now my boyfriend wants me out. I have paid my share of the rent and even pay for a bill. Does he or is he capable of legally kicking me out?