She doesn't believe it, she might think she does, but deep down she absolutely doesn't and it's just a shit test. So she'll get some retard to actually do that, for that feeling of control, and then fuck someone else who isn't snipped, refuses to wear a rubber, and slaps her around, someone who is the exact opposite of the type of completely defeated cuckold who will end his genetic line for a nonbinding promise of a crumb of pussy.

And then she'll find out she can't have kids anyway lmao. Although from that small profile pic I can't tell how old she is, it looks incredibly weird.