As a depressed person, the overall unlikability of everyone works for me. It puts you in the mind of someone who wants to cut people out of her life and sleep all day. It makes weddings feel artificial and married life feel like a prison. It makes an inbound death planet feel like an escape.

It's not about sympathy. It's about putting you in the headspace of severe depression. If you don't want that experience then that's completely reasonable, and I recommend you skip this movie, because that's the intention and it's very effective at it.