How does your SO have you listed in his phone?

My husband and I have been going through a major rough spot in our relationship. He has threatened to leave, and/or make me leave. We're at a spot where he even suggested we have a "break"!!!!!!!! I've been thinking about leaving myself because of all the secrets he's been keeping (and A LOT of other crap that's been happening).

Last night, I just happened to look over his shoulder as he was looking for a contract in his phone book, and saw he had changed my name...I haven't asked him, so could it be possible that he added another person who has the same name as me????? (it's listed under my middle name...)