There is a sequence with videos and images of dead dogs about 16 minutes in. Apparent dog murder 32 minutes in but he appears unharmed later and escapes despite threats to his life.
A character breaks their own leg with a baseball bat in a sequence lasting from 1:11-1:12. They then jump over a railing to break the other one but are unsuccessful.
It is suggested and there is a scene that shows the protagonist imagining the boyfriend cheating based on suggestive implicative scenes during a live, but it isn't clear if he did.