One reason for the epidemic of self-destructiveness that has struck British, if not the whole of Western, society, is the avoidance of boredom. For people who have no transcendent purpose to their lives and cannot invent one through contributing to a cultural tradition (for example), in other words who have no religious belief and no intellectual interests to stimulate them, self-destruction and the creation of crises in their life is one way of warding off meaninglessness. I have noticed, for example, that women who frequent bad men - that is to say men who are obviously unreliable, drunken, drug-addicted, criminal, or violent, or all of them together, have often had experience of decent men who treat them well, with respect, and so forth: they are the ones with whom their relationships lasted the shortest time, because they were bored by decency. Without religion or culture (and here I mean high, or high-ish, culture) evil is very attractive. It is not boring.
Calls to mind Pascal's line "All men's miseries derive from not being able to sit in a quiet room alone."