I would think that any lie or omission to a partner under that broad definition would make that partner "abusive". Maybe I am more lax than that, but I think it takes more than that for someone to be abusive. If a sub repeatedly and selfishly made such omissions, then I would say okay, sure. To me... it just seems a harsh characterization for a minor thing. To me that's like saying that a parent that hit their kid one time in a heated situation, despite being a totally good and devoted parent the rest of the time, was physically "abusive".