As best as I can figure out without doing any research...
A fan of a voice actor has decided that they are in a relationship with the VA's character (yumeship). They therefore want the VA to dump their real girlfriend, and they want the VA to also delete pictures of themself they've posted, because the fan is jealous that other people can see their "fictional other" (like significant other, but you know, fictional).
The fan expects the VA to do all these things because an AI chatbot based on the VA's character said they would.