I recommend limiting one's involvement in other people's lives to a pleasantly scant minimum. This may seem too stoical a position in these madly passionate times, but madly passionate people rarely make good on their madly passionate promises.
For the average person, taken to their sick bed, it takes a serious bout of pneumonia or a full body cast to completely forget the life they had prior to falling off the rollercoaster. I, however, will do this over a paper cut on my thumb, obsessing of said cut and being generally consumed by it.