I don't know and I kinda guess the characters don't know either. It's more like not willing to lose something, than to actually love it/him/her. You could also say, Love is in the air ... but somehow no one can touch it.
While it has it's comedic moments too, it's more a (black) drama. At first you might guess where this is going, it seems to go the usual path that any movie with a plot like this goes (look for the plot summary, if you will, I won't spoil anything), but it does turn out to change it's path. Sometime the changes are very ridiculous, so you might have to stay with it. If you click out at some of the outrageous plot changes, you won't like the movie. The end is complete out-there (i.e. crazy), but the movie builds up to that point, so it's not a complete surprise. Still some might be shocked/appalled by it ...
While it has it's comedic moments too, it's more a (black) drama. At first you might guess where this is going, it seems to go the usual path that any movie with a plot like this goes (look for the plot summary, if you will, I won't spoil anything), but it does turn out to change it's path. Sometime the changes are very ridiculous, so you might have to stay with it. If you click out at some of the outrageous plot changes, you won't like the movie. The end is complete out-there (i.e. crazy), but the movie builds up to that point, so it's not a complete surprise. Still some might be shocked/appalled by it ...