Board Thread:General Discussion/@comment-74.199.104.174-20181123102112/@comment-35196587-20181123153708

To increase reputation levels, you need fewer rep points than you do XP needed to increase your game level.

https://seekers-notes.wikia.com/wiki/Reputation_Levels

So if your friend is only visiting and not playing, her rep level will increase at a faster pace than her game level.