They're definitely not living together any more, and I think that it was brought about because one (or both) were moving in with their respective missuses (or 'missi'). On top of that, I think that the distancing from the bromance is a natural part of growing up and maturing. I'd say that they're still mates, but that they've had enough of the 'OHMYGAWDROCKYANDREDDOARESOOOOINLUVLOL' rhetoric.