What does it mean when a guy says that you are more than a friend but tells others he is single?

Until he decides to see someone on a regular basis he is single. Also, he could mean that he's not married. If you are dating on a regular basis and he's saying this, then I'd correct his vocabulary and tell him "then what do you call our relationship?" Nip this in the bud! Tell him to make up his mind. Marcy He wants to be your boyfriend and hhe told them tht he is single because you are not lovers yet.(boyfriend,girlfriend)