Try being patient. It's been three months and he was open about what he wants, which is to be in a long term relationship. What about that conversation makes you think he wasn't referring to what you two have? I don't get that, but if you really insist on holding out for this title, why don't you talk to him again. Not communicating isn't going to get you anymore answers than if you spoke up, and falling back will get you absolutely nowhere.