"Were sollux and aradia ever matesprits?" You answered that they were moirails, but they were dating before aradia died. They broke up because sol was upset that he killed her

I said they were most likely moirails. Hussie stated on his formspring that he’d rather not spell it out. 

“Question: How can the former relationship between Sollux and Aradia be described? I assume it was red romance, but was it concupiscent or conciliatory?

AH: Maybe it’s more interesting if it’s not spelled out.”

Also Sollux didn’t know she was dead.