Maybe she was really boring and he had more fun with video games? Just because she's hot, doesn't mean she's a whore in the bedroom. Maybe she didn't do all the things he wanted in bed, and he got sick of it and just played video games instead? It's hard to have a fair representation of their relationship just because she's whiny about him not spending time with her.
And I'm with the guys that say it's about the money, not the machine itself. He'll just buy another one anyways, so destroying it is I guess wasting her money. ;) Oh well. Women are crazy sometimes.