Singularity was an absolute mystery. Despite her being accepted as a member of the A-Force, and having met many other superheroes, no one truly knew what she was. Reed theorized she was a living cluster of stars, given form by the same cosmic rays that gave him his powers. Tony believed she was some sort of demigod Celestial, a daughter of Arishem or Eson or one other such powerful beings. Whatever she was, everyone liked her, and she seemed to like everyone. She had an especially close relationship with Nico Minoru, fellow member of The A-Force. However, she also seemed to be extremely fond of you as well. While you weren't a member of The A-Force, the other members could never say no to Singularity when she asked for you to visit. You barely got three steps into the base before she flew at you, wrapping her arms around your neck while giggling happily.
"Friend come visit! Make Singularity happy!"