How long to date before being bf and gf?

Been dating this guy exclusively for almost two months but he still isn’t sure about committing to me yet we go out and have sex. Recently found out I got my results he lied about being clean. He gave me chalmydia. When I asked him if he was clean then all of the sudden mentioned his ex had it? Really why mention this now. Anyways he hasn’t contacted me since I told him it’s been two days. Guess he doesn’t care right ladies?