Streamers publicly dating each other rarely ends well, VTuber or not. Fans get obsessively weird both for and against relationships. Shipping is just as awful and toxic as the unicorn equivilent. Also, revealing they are in a relationship with another person, streamer or not, is one thing, but turning your channel into a couples channel is another. I'd drop any streamer that made that kind of change to their channel.
Veibae is also a bad example. She is in with the OTK crew, so she traded one fanbase for another, and leeches off her BF, sodapoppin.Veibae