because Trish always blew off when it was about Hila: Hila not wanting to be mentioned, before Hila and Ethan went on a romantic weekend and after they announced the new pregnancy.

The common denominator next to pizza and uncle fester cosplay is an emphasis on Hila as kind of an absent protagonist.

Trish was in a bad mood the whole last ep, esp mentioned how it the previous eps title was misleading and tried to brush the topic away (probably also hurtful since she mentioned her being infertile), she was only finally snapped when Ethan quite rudely interrupted her Brokeback Mountain monolog to offer the team pizza (what she herself did a few moments earlier).