A portrait of confused masculinity
What did we learn about Mark Hogancamp?
He likes playing with dolls - male and female ones.
He likes wearing women's shoes sometimes, because it helps him tap into "feminine essence".
He watches porn.
He lives more in an imaginary reality than the real world.
He responds to conflict by turning into a little bitch.
Need I continue? I'll stop there.
I'm glad the movie was unapologetic in making its point at the end: being this way will result in decreased chances of you ending up in a loving relationship. You're gonna end up alone if you're like that, folks.
Anyways, that's what I personally got from watching the movie.