Economics (money & resources), aside.

Even if marriage could be calculated to make sense from a financial stand point:

The other issues involved with marriage would still make it not worth pursuing.

Like,

01: When Snowflake is married but feels like she still deserves new c~~~ on the side (infidelity is not illegal)

02: When all of you time evolves around Snowflake’s whims and wishes

03: The psychological and spiritual cost of living a lie.

04: Dealing with getting old together (people change) and Snowflake won’t look the same at 60 years old as she did at the age of 30. And her once magical hole that emitted intoxicating pheromones and wrapped around your c~~~ like a glove when she was younger will eventually be a dried up raisin.