I think she was making an effort to never talk to men - in her vlogs, she never really spoke to anyone when coming to the lectures, she never invited anyone to study with her, she was pretty much always by herself in the kitchen or going groceries, her dance group was all women I think.
On top of that, she never really went anywhere and I don't mean parties but not grabbing a snack / quick lunch with her study group or a flatmate during her time at uni, not going to any extra-curriculum lectures together or trips seems quite an achievement I must say. You may say that maybe she just did not film those moments but let's face it - we're talking about a 20sth woman who made a 20 min video about her having chit chats with men on a trip.