Would it not be appropriate to frame it in a hopeful light. Daves been struggling with depression and so lost in the past to the point it was breaking him, but now he can look to the future that there might be better times ahead.
Of course more cautiously optimistic what with the imminent death and all. It would be a good opportunity to show dave emotionally healing or at least the potential relationship having a possitive effect on him.
That would work for hoss. Sal could be more working trough stuff together since he also has his own problems so neither of them are alone. I honestly have no idea how to do roswell since as far as dave is concerned he's 100% dead after the month is up.