People always talk about how hard it is to get over a relationship. You're with a person, you love them, they love you, and then it just stops.
Of course, if something like that just ends then not only is it a tragic event - it was maybe precipitated by one, which if true serves to double down on the feelings one has to get through and get over.
I'm going to propose an idea, though: that it's harder to get over people who you don't get into a relationship with than it is to get over people you do date.