"it" as a euphemism for trauma?

Rating: 7/10 (2 June 2015)

I was actually really disappointed by the ambiguity of this film, but the ending was quite appropriate. I was predicting there would be some kind of salvation in partnership, as everyone seemed self- oriented and selfishly served in "passing on" the "it" through sex, which never remedied the problem. The bit with her father (who was deceased, we assumed untimely) in the pool assaulting her and the "it" never being visible to others, except only when described or veiled.
The only relief was when they embraced the "it" together, as a couple. I don't think it necessarily has to do with youth sex, but maybe the trauma that everyone endures that may lead to impulsive and self-destructive behaviors, like her encounter with the three men on the boat, which you could tell was afflicting as she drove home with tears in her eyes.
It's hard to tell, but I thought it was alright. I think the babadook definitely represented itself with more clarity than this film did.