It appears that all of the monsters are paired up with an enemy alien, after all, there are four members on each team! Susan seems to have to be arch enemies with Vornicarn, but she could be enemies with Coverton as she seems to hate him more than B.O.B does, but Coverton hates B.O.B more than he does Susan. So far in the series, she hasn't been shown trying to "make friends" with any of the aliens, she only felt forced to bunk with Sqweep. Susan is shown talking mostly to Link, probably because they are bot the tough ones, but also because Link's the only sane monster that can remind Susan the consequences or lay things down straight to her, but sometimes, this relationship is shown with Dr.C.