>>72442523Because if you pander to lonely men and market yourself as their partner, albeit virtual, you really don't need to bring other males into the equation. The GFE immersion works with chatters because they are roughly on the same level and ideally a singular entity, you don't see people complaining that chatter2391 is "cucking" them when they are flirty in chat because the GFE vtuber is chat's gf. Only when the favoritism gets too blatant to get handwave off you have meltdowns over fellow chatters and that's already a GFE fail.
Boyfriends, male friends and male vtubers exist in a privileged space compared to regular chatters, bringing them up or having them on stream/off collab is an instant GFE break and it adds nothing to the experience unless the vtuber wants her audience to feel like thrid wheels. Does she have males in her life? Of course, GFE works on a suspension of disbelief regarding those matters though, in the fantasy world of virtual companionship she is supposed to be only yours.
I can see why people call her a NTR/GFE hybrid and the most charitable interpretation I can give for her behavior is that she has 0 kayfabe, so you will get males pushed on you in between "real" GFE moments because that's just how she is. Other GFE vtubers have more kayfabe: less "real" GFE but no males, those are safer to recommend.