The bright side
Godzilla_moon later shared on Reddit that his ex-girlfriend and her daughter moved out of his house and moved in with her husband’s family. He was finally free from his endless commitments for them. He couldn’t really care how the wedding turned out.
Families are complicated, but apparently some more so than others. The (ex) stepdad was happy not to call himself a member of this family anymore. After the bride showed no respect or even gratitude for his generosity, he realized that he had no place in their lives.