While he has not formally requested asylym, it’s clear that Tsvangirai believes that his life is in danger, which is why he’s sleeping there.
We also have Thabo Mbeki traveling to Zimbabwe, to make a “final plea” to Mugabe about doing the right thing. We can be sure that Mbeki’s effort will be ineffectual, and will be full of enabling language. That is what he’s done for the past 10 years.