As for Georgi's abilities to conduct a love life while in the Caucasus, TB can be a fluctuating disease. He was in the Caucasus for something like seven years, and as he lived that long, his condition would have improved at times and deteriorated at others. My maternal grandfather was gassed in the First World War and also had TB (not sure in which order). For the rest of his life he had periodic flare-ups of TB, but lived a fairly active life, held down a demanding job, married and had four children. Admittedly, he wasn't as bad a case as Georgi, but he did eventually die from TB, in the cause of a final flare-up brought on by an attack of pneumonia.
Ann