OR you could make the conscious decision to accept what he says about himself as the truth and value your serenity and sanity enough to end the relationship, recognizing that it is fundamentally unhealthy.
I'm not being facetious about seeing a therapist. IIRC, you have a pattern of seeking out high-drama relationships with unavailable men. This guy may not be married, but he's telling you point blank he is not emotionally available. And that's about the least disturbing thing he's said to you.
A therapist can help you get to the root of why you have this pattern in your life, yes?