My ex-boyfriend sent me a message with these letters and said that 'he's finally brave enough to tell me', or some bullcrap like that. He said he wouldn't tell me the encryption type, but he'd tell me that the key is 'acdc23b'. I don't know about any of this stuff. Please help.
Message --> I nrxj epu Lhux O kuuw yfy oexht gxbvg hptahh vr ettgeuv