>>2804091Sukoya has a STEM career, is allergic to het both real and fictional (some exceptions for the latter), and was raised by a single mother who told her Jackie Chan was her boyfriend (with accompanying twoshot photo). She also streams just as a hobby and has stated her intention to stick around for as long as Nijisanji continues existing. There's basically zero chance of her quitting to get het married.
Tomoe is on shakier ground as she pretty much only has a teaching license aside from vtubing. (She hasn't quit her dayjob but it doesn't sound like something she can retire on.) However, she already went through the "thinking about quitting" phase (just before her 1yr anniversary) and seems to have made her resolution to continue long-term. Her vtuber activities have been spread around her whole family (parents, grandparents, siblings, nephews) so there should be no more illusions about her "inclinations" (Tomoe's mom's behaviour indicates her perception of Sukoya as Tomoe's girlfriend; her dad's been a Sukoya fan from the start).
Tbh money (Tomoe's long-term career) is probably the only thing holding her back from committing. So long as the vtuber industry doesn't collapse on its face, you probably CAN look forward to a real Crossick wedding someday (e.g. if gay marriage gets legalized).