There are YouTube income estimators online and a very basic rule seems to be 10k daily views equals about $1k a month. I don’t think Victoria’s channels are getting anything like this amount of views, are they? I remember The Lodge Guys saying they got £1.80 a day from YouTube and they used to vlog daily at the time.
If we assume Ian covers every other aspect of her life with his salary, even with her Patreon, she can’t be earning enough to cover all those trips, let alone sustain herself financially if they split up