Money havoc

So, I jusr recently added my s/o to my account and I think it ws the wors mistake ever. I added him ti my account to put the money he owed me back im my account, only to find out he's been taking it back out and I don't know what to do. I have am account in state where I am and an account out of state where he is because we're in a long distance reltionship. He's veen lying to me telling me his sister gave him money, she didn't, it came out of my account. He tells on his self about the money amd thinks, I can't see what's going on, I'm able to see all. Whar do i do any suggestions.