>Does my bitterness toward the institution of marriage itself end?
Under the current ruleset, a man is a damned fool if it doesn't. That feeling and bitterness you are experiencing is self-preservation and something called logic.
>Will I ever believe in the beauty that successful marriages have?
In the concept? Sure. Perhaps we all do. In the state-ordained reality? Shit no. Title IV-D, and the data around divorce initiation should, at the very least, trigger an intellectual analysis that sets aside emotion and hope. Many men (self included) compared modern marriage dynamics and laws to marriages that occurred when these things were drastically different. When grandma and granddad married, there was social shame for divorce and no paid incentives to be a single mother.